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Finding the Fourth Proportional to 132,110.40, 198,165.60 and 108,490.80

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Solution

The fourth proportional to 132,110.40, 198,165.60 and 108,490.80 is: 162,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,110.40 : 198,165.60 = 108,490.80 : x
  2. Step 2: Convert to fraction form
    132,110.40/198,165.60 = 108,490.80/x
  3. Step 3: Cross multiply
    132,110.40x = 198,165.60 × 108,490.80
  4. Step 4: Simplify right side
    132,110.40x = 21,499,144,476.48
  5. Step 5: Solve for x
    x = 21,499,144,476.48/132,110.40
  6. Step 6: Final answer
    x = 162,736.20

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Why These Related Problems?

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