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Finding the Fourth Proportional to 163,213.52, 244,590.52 and 129,785.20

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Solution

The fourth proportional to 163,213.52, 244,590.52 and 129,785.20 is: 194,495.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,213.52 : 244,590.52 = 129,785.20 : x
  2. Step 2: Convert to fraction form
    163,213.52/244,590.52 = 129,785.20/x
  3. Step 3: Cross multiply
    163,213.52x = 244,590.52 × 129,785.20
  4. Step 4: Simplify right side
    163,213.52x = 31,744,229,556.30
  5. Step 5: Solve for x
    x = 31,744,229,556.30/163,213.52
  6. Step 6: Final answer
    x = 194,495.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.