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Finding the Fourth Proportional to 134,663.87, 185,836.72 and 74,233.21

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Solution

The fourth proportional to 134,663.87, 185,836.72 and 74,233.21 is: 102,442.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,663.87 : 185,836.72 = 74,233.21 : x
  2. Step 2: Convert to fraction form
    134,663.87/185,836.72 = 74,233.21/x
  3. Step 3: Cross multiply
    134,663.87x = 185,836.72 × 74,233.21
  4. Step 4: Simplify right side
    134,663.87x = 13,795,255,611.30
  5. Step 5: Solve for x
    x = 13,795,255,611.30/134,663.87
  6. Step 6: Final answer
    x = 102,442.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.