Home / 112,687,640.80-169,157,432.40-87,241,458.40

Finding the Fourth Proportional to 112,687,640.80, 169,157,432.40 and 87,241,458.40

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Solution

The fourth proportional to 112,687,640.80, 169,157,432.40 and 87,241,458.40 is: 130,959,713.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,687,640.80 : 169,157,432.40 = 87,241,458.40 : x
  2. Step 2: Convert to fraction form
    112,687,640.80/169,157,432.40 = 87,241,458.40/x
  3. Step 3: Cross multiply
    112,687,640.80x = 169,157,432.40 × 87,241,458.40
  4. Step 4: Simplify right side
    112,687,640.80x = 14,757,541,101,775,414
  5. Step 5: Solve for x
    x = 14,757,541,101,775,414/112,687,640.80
  6. Step 6: Final answer
    x = 130,959,713.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.