Home / 103,887.66-143,331.26-63,559.38

Finding the Fourth Proportional to 103,887.66, 143,331.26 and 63,559.38

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Solution

The fourth proportional to 103,887.66, 143,331.26 and 63,559.38 is: 87,691.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,887.66 : 143,331.26 = 63,559.38 : x
  2. Step 2: Convert to fraction form
    103,887.66/143,331.26 = 63,559.38/x
  3. Step 3: Cross multiply
    103,887.66x = 143,331.26 × 63,559.38
  4. Step 4: Simplify right side
    103,887.66x = 9,110,046,020.22
  5. Step 5: Solve for x
    x = 9,110,046,020.22/103,887.66
  6. Step 6: Final answer
    x = 87,691.32

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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.