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Finding the Fourth Proportional to 101,780.55, 152,609.27 and 45,610.29

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Solution

The fourth proportional to 101,780.55, 152,609.27 and 45,610.29 is: 68,387.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,780.55 : 152,609.27 = 45,610.29 : x
  2. Step 2: Convert to fraction form
    101,780.55/152,609.27 = 45,610.29/x
  3. Step 3: Cross multiply
    101,780.55x = 152,609.27 × 45,610.29
  4. Step 4: Simplify right side
    101,780.55x = 6,960,552,833.34
  5. Step 5: Solve for x
    x = 6,960,552,833.34/101,780.55
  6. Step 6: Final answer
    x = 68,387.85

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1.5x scale

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.