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Finding the Fourth Proportional to 131,773.45, 181,847.43 and 71,344.11

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Solution

The fourth proportional to 131,773.45, 181,847.43 and 71,344.11 is: 98,454.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,773.45 : 181,847.43 = 71,344.11 : x
  2. Step 2: Convert to fraction form
    131,773.45/181,847.43 = 71,344.11/x
  3. Step 3: Cross multiply
    131,773.45x = 181,847.43 × 71,344.11
  4. Step 4: Simplify right side
    131,773.45x = 12,973,743,049.14
  5. Step 5: Solve for x
    x = 12,973,743,049.14/131,773.45
  6. Step 6: Final answer
    x = 98,454.91

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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.