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Finding the Fourth Proportional to 101,333.62, 139,821.15 and 63,590.86

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Solution

The fourth proportional to 101,333.62, 139,821.15 and 63,590.86 is: 87,743.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,333.62 : 139,821.15 = 63,590.86 : x
  2. Step 2: Convert to fraction form
    101,333.62/139,821.15 = 63,590.86/x
  3. Step 3: Cross multiply
    101,333.62x = 139,821.15 × 63,590.86
  4. Step 4: Simplify right side
    101,333.62x = 8,891,347,174.69
  5. Step 5: Solve for x
    x = 8,891,347,174.69/101,333.62
  6. Step 6: Final answer
    x = 87,743.31

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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.