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Finding the Fourth Proportional to 123,657.49, 185,500.95 and 39,388.06

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Solution

The fourth proportional to 123,657.49, 185,500.95 and 39,388.06 is: 59,086.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,657.49 : 185,500.95 = 39,388.06 : x
  2. Step 2: Convert to fraction form
    123,657.49/185,500.95 = 39,388.06/x
  3. Step 3: Cross multiply
    123,657.49x = 185,500.95 × 39,388.06
  4. Step 4: Simplify right side
    123,657.49x = 7,306,522,548.66
  5. Step 5: Solve for x
    x = 7,306,522,548.66/123,657.49
  6. Step 6: Final answer
    x = 59,086.78

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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.