Home / 156,635.79-234,916.05-72,314.97

Finding the Fourth Proportional to 156,635.79, 234,916.05 and 72,314.97

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Solution

The fourth proportional to 156,635.79, 234,916.05 and 72,314.97 is: 108,455.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,635.79 : 234,916.05 = 72,314.97 : x
  2. Step 2: Convert to fraction form
    156,635.79/234,916.05 = 72,314.97/x
  3. Step 3: Cross multiply
    156,635.79x = 234,916.05 × 72,314.97
  4. Step 4: Simplify right side
    156,635.79x = 16,987,947,108.27
  5. Step 5: Solve for x
    x = 16,987,947,108.27/156,635.79
  6. Step 6: Final answer
    x = 108,455.08

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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.