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Finding the Fourth Proportional to 159,505.80, 239,291.10 and 54,335.40

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Solution

The fourth proportional to 159,505.80, 239,291.10 and 54,335.40 is: 81,514.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,505.80 : 239,291.10 = 54,335.40 : x
  2. Step 2: Convert to fraction form
    159,505.80/239,291.10 = 54,335.40/x
  3. Step 3: Cross multiply
    159,505.80x = 239,291.10 × 54,335.40
  4. Step 4: Simplify right side
    159,505.80x = 13,001,977,634.94
  5. Step 5: Solve for x
    x = 13,001,977,634.94/159,505.80
  6. Step 6: Final answer
    x = 81,514.14

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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.