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Finding the Fourth Proportional to 132,258.10, 198,472.20 and 73,136.20

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Solution

The fourth proportional to 132,258.10, 198,472.20 and 73,136.20 is: 109,751.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,258.10 : 198,472.20 = 73,136.20 : x
  2. Step 2: Convert to fraction form
    132,258.10/198,472.20 = 73,136.20/x
  3. Step 3: Cross multiply
    132,258.10x = 198,472.20 × 73,136.20
  4. Step 4: Simplify right side
    132,258.10x = 14,515,502,513.64
  5. Step 5: Solve for x
    x = 14,515,502,513.64/132,258.10
  6. Step 6: Final answer
    x = 109,751.33

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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.