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Finding the Fourth Proportional to 123,902.20, 185,926.20 and 45,024.40

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Solution

The fourth proportional to 123,902.20, 185,926.20 and 45,024.40 is: 67,563.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,902.20 : 185,926.20 = 45,024.40 : x
  2. Step 2: Convert to fraction form
    123,902.20/185,926.20 = 45,024.40/x
  3. Step 3: Cross multiply
    123,902.20x = 185,926.20 × 45,024.40
  4. Step 4: Simplify right side
    123,902.20x = 8,371,215,599.28
  5. Step 5: Solve for x
    x = 8,371,215,599.28/123,902.20
  6. Step 6: Final answer
    x = 67,563.09

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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.