Home / 103,948.42-143,448.69-56,201.65

Finding the Fourth Proportional to 103,948.42, 143,448.69 and 56,201.65

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Solution

The fourth proportional to 103,948.42, 143,448.69 and 56,201.65 is: 77,558.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,948.42 : 143,448.69 = 56,201.65 : x
  2. Step 2: Convert to fraction form
    103,948.42/143,448.69 = 56,201.65/x
  3. Step 3: Cross multiply
    103,948.42x = 143,448.69 × 56,201.65
  4. Step 4: Simplify right side
    103,948.42x = 8,062,053,068.34
  5. Step 5: Solve for x
    x = 8,062,053,068.34/103,948.42
  6. Step 6: Final answer
    x = 77,558.21

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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.