Home / 103,700.57-143,117.55-63,441.14

Finding the Fourth Proportional to 103,700.57, 143,117.55 and 63,441.14

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Solution

The fourth proportional to 103,700.57, 143,117.55 and 63,441.14 is: 87,555.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,700.57 : 143,117.55 = 63,441.14 : x
  2. Step 2: Convert to fraction form
    103,700.57/143,117.55 = 63,441.14/x
  3. Step 3: Cross multiply
    103,700.57x = 143,117.55 × 63,441.14
  4. Step 4: Simplify right side
    103,700.57x = 9,079,539,810.42
  5. Step 5: Solve for x
    x = 9,079,539,810.42/103,700.57
  6. Step 6: Final answer
    x = 87,555.36

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Half scale
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Double scale
Find fourth proportional to 103,701.57, 143,118.93 and 63,442.14
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.