Home / 156,379.25-215,802.15-84,757.43

Finding the Fourth Proportional to 156,379.25, 215,802.15 and 84,757.43

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Solution

The fourth proportional to 156,379.25, 215,802.15 and 84,757.43 is: 116,964.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,379.25 : 215,802.15 = 84,757.43 : x
  2. Step 2: Convert to fraction form
    156,379.25/215,802.15 = 84,757.43/x
  3. Step 3: Cross multiply
    156,379.25x = 215,802.15 × 84,757.43
  4. Step 4: Simplify right side
    156,379.25x = 18,290,835,622.47
  5. Step 5: Solve for x
    x = 18,290,835,622.47/156,379.25
  6. Step 6: Final answer
    x = 116,964.59

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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.