Home / 120,125.43-165,772.17-66,412.71

Finding the Fourth Proportional to 120,125.43, 165,772.17 and 66,412.71

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Solution

The fourth proportional to 120,125.43, 165,772.17 and 66,412.71 is: 91,649.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,125.43 : 165,772.17 = 66,412.71 : x
  2. Step 2: Convert to fraction form
    120,125.43/165,772.17 = 66,412.71/x
  3. Step 3: Cross multiply
    120,125.43x = 165,772.17 × 66,412.71
  4. Step 4: Simplify right side
    120,125.43x = 11,009,379,052.28
  5. Step 5: Solve for x
    x = 11,009,379,052.28/120,125.43
  6. Step 6: Final answer
    x = 91,649.03

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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.