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Finding the Fourth Proportional to 131,956, 182,110.80 and 72,351.52

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Solution

The fourth proportional to 131,956, 182,110.80 and 72,351.52 is: 99,851.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,956 : 182,110.80 = 72,351.52 : x
  2. Step 2: Convert to fraction form
    131,956/182,110.80 = 72,351.52/x
  3. Step 3: Cross multiply
    131,956x = 182,110.80 × 72,351.52
  4. Step 4: Simplify right side
    131,956x = 13,175,993,188.42
  5. Step 5: Solve for x
    x = 13,175,993,188.42/131,956
  6. Step 6: Final answer
    x = 99,851.41

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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.