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Finding the Fourth Proportional to 132,504.40, 198,766.20 and 79,800.40

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Solution

The fourth proportional to 132,504.40, 198,766.20 and 79,800.40 is: 119,706.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,504.40 : 198,766.20 = 79,800.40 : x
  2. Step 2: Convert to fraction form
    132,504.40/198,766.20 = 79,800.40/x
  3. Step 3: Cross multiply
    132,504.40x = 198,766.20 × 79,800.40
  4. Step 4: Simplify right side
    132,504.40x = 15,861,622,266.48
  5. Step 5: Solve for x
    x = 15,861,622,266.48/132,504.40
  6. Step 6: Final answer
    x = 119,706.38

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1.5x scale

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.