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Finding the Fourth Proportional to 127,814.34, 176,387.39 and 71,229.36

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Solution

The fourth proportional to 127,814.34, 176,387.39 and 71,229.36 is: 98,298.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,814.34 : 176,387.39 = 71,229.36 : x
  2. Step 2: Convert to fraction form
    127,814.34/176,387.39 = 71,229.36/x
  3. Step 3: Cross multiply
    127,814.34x = 176,387.39 × 71,229.36
  4. Step 4: Simplify right side
    127,814.34x = 12,563,960,901.77
  5. Step 5: Solve for x
    x = 12,563,960,901.77/127,814.34
  6. Step 6: Final answer
    x = 98,298.52

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