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Finding the Fourth Proportional to 131,797.27, 181,881.10 and 71,367.91

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Solution

The fourth proportional to 131,797.27, 181,881.10 and 71,367.91 is: 98,488.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,797.27 : 181,881.10 = 71,367.91 : x
  2. Step 2: Convert to fraction form
    131,797.27/181,881.10 = 71,367.91/x
  3. Step 3: Cross multiply
    131,797.27x = 181,881.10 × 71,367.91
  4. Step 4: Simplify right side
    131,797.27x = 12,980,473,520.80
  5. Step 5: Solve for x
    x = 12,980,473,520.80/131,797.27
  6. Step 6: Final answer
    x = 98,488.19

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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.