Home / 138,772.17-191,505.92-75,110.40

Finding the Fourth Proportional to 138,772.17, 191,505.92 and 75,110.40

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Solution

The fourth proportional to 138,772.17, 191,505.92 and 75,110.40 is: 103,652.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,772.17 : 191,505.92 = 75,110.40 : x
  2. Step 2: Convert to fraction form
    138,772.17/191,505.92 = 75,110.40/x
  3. Step 3: Cross multiply
    138,772.17x = 191,505.92 × 75,110.40
  4. Step 4: Simplify right side
    138,772.17x = 14,384,085,878.02
  5. Step 5: Solve for x
    x = 14,384,085,878.02/138,772.17
  6. Step 6: Final answer
    x = 103,652.53

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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.