Home / 156,121.27-215,448.92-84,502.82

Finding the Fourth Proportional to 156,121.27, 215,448.92 and 84,502.82

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Solution

The fourth proportional to 156,121.27, 215,448.92 and 84,502.82 is: 116,614.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,121.27 : 215,448.92 = 84,502.82 : x
  2. Step 2: Convert to fraction form
    156,121.27/215,448.92 = 84,502.82/x
  3. Step 3: Cross multiply
    156,121.27x = 215,448.92 × 84,502.82
  4. Step 4: Simplify right side
    156,121.27x = 18,206,041,305.95
  5. Step 5: Solve for x
    x = 18,206,041,305.95/156,121.27
  6. Step 6: Final answer
    x = 116,614.74

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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.