Home / 102,240.31-141,096.24-56,921.23

Finding the Fourth Proportional to 102,240.31, 141,096.24 and 56,921.23

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Solution

The fourth proportional to 102,240.31, 141,096.24 and 56,921.23 is: 78,553.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,240.31 : 141,096.24 = 56,921.23 : x
  2. Step 2: Convert to fraction form
    102,240.31/141,096.24 = 56,921.23/x
  3. Step 3: Cross multiply
    102,240.31x = 141,096.24 × 56,921.23
  4. Step 4: Simplify right side
    102,240.31x = 8,031,371,785.59
  5. Step 5: Solve for x
    x = 8,031,371,785.59/102,240.31
  6. Step 6: Final answer
    x = 78,553.86

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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.