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Finding the Fourth Proportional to 132,349.20, 198,523.80 and 70,141.20

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Solution

The fourth proportional to 132,349.20, 198,523.80 and 70,141.20 is: 105,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,349.20 : 198,523.80 = 70,141.20 : x
  2. Step 2: Convert to fraction form
    132,349.20/198,523.80 = 70,141.20/x
  3. Step 3: Cross multiply
    132,349.20x = 198,523.80 × 70,141.20
  4. Step 4: Simplify right side
    132,349.20x = 13,924,697,560.56
  5. Step 5: Solve for x
    x = 13,924,697,560.56/132,349.20
  6. Step 6: Final answer
    x = 105,211.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.