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Finding the Fourth Proportional to 127,195.92, 175,531.04 and 79,476.96

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Solution

The fourth proportional to 127,195.92, 175,531.04 and 79,476.96 is: 109,678.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,195.92 : 175,531.04 = 79,476.96 : x
  2. Step 2: Convert to fraction form
    127,195.92/175,531.04 = 79,476.96/x
  3. Step 3: Cross multiply
    127,195.92x = 175,531.04 × 79,476.96
  4. Step 4: Simplify right side
    127,195.92x = 13,950,673,444.84
  5. Step 5: Solve for x
    x = 13,950,673,444.84/127,195.92
  6. Step 6: Final answer
    x = 109,678.62

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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.