Home / 87,168,428.70-130,516,713.45-68,294,060.70

Finding the Fourth Proportional to 87,168,428.70, 130,516,713.45 and 68,294,060.70

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Solution

The fourth proportional to 87,168,428.70, 130,516,713.45 and 68,294,060.70 is: 102,256,246.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,168,428.70 : 130,516,713.45 = 68,294,060.70 : x
  2. Step 2: Convert to fraction form
    87,168,428.70/130,516,713.45 = 68,294,060.70/x
  3. Step 3: Cross multiply
    87,168,428.70x = 130,516,713.45 × 68,294,060.70
  4. Step 4: Simplify right side
    87,168,428.70x = 8,913,516,350,718,807
  5. Step 5: Solve for x
    x = 8,913,516,350,718,807/87,168,428.70
  6. Step 6: Final answer
    x = 102,256,246.71

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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.