Home / 156,387.52-215,815.24-84,767.83

Finding the Fourth Proportional to 156,387.52, 215,815.24 and 84,767.83

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Solution

The fourth proportional to 156,387.52, 215,815.24 and 84,767.83 is: 116,979.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,387.52 : 215,815.24 = 84,767.83 : x
  2. Step 2: Convert to fraction form
    156,387.52/215,815.24 = 84,767.83/x
  3. Step 3: Cross multiply
    156,387.52x = 215,815.24 × 84,767.83
  4. Step 4: Simplify right side
    156,387.52x = 18,294,189,142.15
  5. Step 5: Solve for x
    x = 18,294,189,142.15/156,387.52
  6. Step 6: Final answer
    x = 116,979.85

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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.