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Finding the Fourth Proportional to 159,780.01, 220,576.31 and 99,370.11

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Solution

The fourth proportional to 159,780.01, 220,576.31 and 99,370.11 is: 137,180.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,780.01 : 220,576.31 = 99,370.11 : x
  2. Step 2: Convert to fraction form
    159,780.01/220,576.31 = 99,370.11/x
  3. Step 3: Cross multiply
    159,780.01x = 220,576.31 × 99,370.11
  4. Step 4: Simplify right side
    159,780.01x = 21,918,691,691.24
  5. Step 5: Solve for x
    x = 21,918,691,691.24/159,780.01
  6. Step 6: Final answer
    x = 137,180.44

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1.5x scale

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.