Home / 156,255.27-215,490.54-102,519.87

Finding the Fourth Proportional to 156,255.27, 215,490.54 and 102,519.87

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Solution

The fourth proportional to 156,255.27, 215,490.54 and 102,519.87 is: 141,384.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,255.27 : 215,490.54 = 102,519.87 : x
  2. Step 2: Convert to fraction form
    156,255.27/215,490.54 = 102,519.87/x
  3. Step 3: Cross multiply
    156,255.27x = 215,490.54 × 102,519.87
  4. Step 4: Simplify right side
    156,255.27x = 22,092,062,147.03
  5. Step 5: Solve for x
    x = 22,092,062,147.03/156,255.27
  6. Step 6: Final answer
    x = 141,384.43

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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.