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Finding the Fourth Proportional to 127,270.88, 175,489.89 and 81,270.04

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Solution

The fourth proportional to 127,270.88, 175,489.89 and 81,270.04 is: 112,060.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,270.88 : 175,489.89 = 81,270.04 : x
  2. Step 2: Convert to fraction form
    127,270.88/175,489.89 = 81,270.04/x
  3. Step 3: Cross multiply
    127,270.88x = 175,489.89 × 81,270.04
  4. Step 4: Simplify right side
    127,270.88x = 14,262,069,096.10
  5. Step 5: Solve for x
    x = 14,262,069,096.10/127,270.88
  6. Step 6: Final answer
    x = 112,060.74

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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.