Home / 156,357.22-215,772.42-84,739

Finding the Fourth Proportional to 156,357.22, 215,772.42 and 84,739

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Solution

The fourth proportional to 156,357.22, 215,772.42 and 84,739 is: 116,939.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,357.22 : 215,772.42 = 84,739 : x
  2. Step 2: Convert to fraction form
    156,357.22/215,772.42 = 84,739/x
  3. Step 3: Cross multiply
    156,357.22x = 215,772.42 × 84,739
  4. Step 4: Simplify right side
    156,357.22x = 18,284,339,098.38
  5. Step 5: Solve for x
    x = 18,284,339,098.38/156,357.22
  6. Step 6: Final answer
    x = 116,939.53

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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.