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Finding the Fourth Proportional to 148,658.20, 223,016.10 and 74,786.20

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Solution

The fourth proportional to 148,658.20, 223,016.10 and 74,786.20 is: 112,193.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,658.20 : 223,016.10 = 74,786.20 : x
  2. Step 2: Convert to fraction form
    148,658.20/223,016.10 = 74,786.20/x
  3. Step 3: Cross multiply
    148,658.20x = 223,016.10 × 74,786.20
  4. Step 4: Simplify right side
    148,658.20x = 16,678,526,657.82
  5. Step 5: Solve for x
    x = 16,678,526,657.82/148,658.20
  6. Step 6: Final answer
    x = 112,193.79

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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.