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Finding the Fourth Proportional to 127,375.57, 175,474.48 and 89,063.43

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Solution

The fourth proportional to 127,375.57, 175,474.48 and 89,063.43 is: 122,695.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,375.57 : 175,474.48 = 89,063.43 : x
  2. Step 2: Convert to fraction form
    127,375.57/175,474.48 = 89,063.43/x
  3. Step 3: Cross multiply
    127,375.57x = 175,474.48 × 89,063.43
  4. Step 4: Simplify right side
    127,375.57x = 15,628,358,620.95
  5. Step 5: Solve for x
    x = 15,628,358,620.95/127,375.57
  6. Step 6: Final answer
    x = 122,695.11

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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.