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Finding the Fourth Proportional to 123,444.40, 185,233.80 and 67,281.20

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Solution

The fourth proportional to 123,444.40, 185,233.80 and 67,281.20 is: 100,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,444.40 : 185,233.80 = 67,281.20 : x
  2. Step 2: Convert to fraction form
    123,444.40/185,233.80 = 67,281.20/x
  3. Step 3: Cross multiply
    123,444.40x = 185,233.80 × 67,281.20
  4. Step 4: Simplify right side
    123,444.40x = 12,462,752,344.56
  5. Step 5: Solve for x
    x = 12,462,752,344.56/123,444.40
  6. Step 6: Final answer
    x = 100,958.43

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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.