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Finding the Fourth Proportional to 127,131, 175,473.02 and 86,861.04

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Solution

The fourth proportional to 127,131, 175,473.02 and 86,861.04 is: 119,890.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,131 : 175,473.02 = 86,861.04 : x
  2. Step 2: Convert to fraction form
    127,131/175,473.02 = 86,861.04/x
  3. Step 3: Cross multiply
    127,131x = 175,473.02 × 86,861.04
  4. Step 4: Simplify right side
    127,131x = 15,241,769,009.14
  5. Step 5: Solve for x
    x = 15,241,769,009.14/127,131
  6. Step 6: Final answer
    x = 119,890.26

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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.