Home / 120,032.74-165,593.15-72,258.41

Finding the Fourth Proportional to 120,032.74, 165,593.15 and 72,258.41

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Solution

The fourth proportional to 120,032.74, 165,593.15 and 72,258.41 is: 99,685.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,032.74 : 165,593.15 = 72,258.41 : x
  2. Step 2: Convert to fraction form
    120,032.74/165,593.15 = 72,258.41/x
  3. Step 3: Cross multiply
    120,032.74x = 165,593.15 × 72,258.41
  4. Step 4: Simplify right side
    120,032.74x = 11,965,497,468.10
  5. Step 5: Solve for x
    x = 11,965,497,468.10/120,032.74
  6. Step 6: Final answer
    x = 99,685.28

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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.