Home / 156,120.27-215,447.54-84,501.82

Finding the Fourth Proportional to 156,120.27, 215,447.54 and 84,501.82

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Solution

The fourth proportional to 156,120.27, 215,447.54 and 84,501.82 is: 116,613.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,120.27 : 215,447.54 = 84,501.82 : x
  2. Step 2: Convert to fraction form
    156,120.27/215,447.54 = 84,501.82/x
  3. Step 3: Cross multiply
    156,120.27x = 215,447.54 × 84,501.82
  4. Step 4: Simplify right side
    156,120.27x = 18,205,709,244.52
  5. Step 5: Solve for x
    x = 18,205,709,244.52/156,120.27
  6. Step 6: Final answer
    x = 116,613.36

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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.