Home / 156,077.62-215,387.49-84,458.41

Finding the Fourth Proportional to 156,077.62, 215,387.49 and 84,458.41

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Solution

The fourth proportional to 156,077.62, 215,387.49 and 84,458.41 is: 116,552.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,077.62 : 215,387.49 = 84,458.41 : x
  2. Step 2: Convert to fraction form
    156,077.62/215,387.49 = 84,458.41/x
  3. Step 3: Cross multiply
    156,077.62x = 215,387.49 × 84,458.41
  4. Step 4: Simplify right side
    156,077.62x = 18,191,284,939.29
  5. Step 5: Solve for x
    x = 18,191,284,939.29/156,077.62
  6. Step 6: Final answer
    x = 116,552.81

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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.