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Finding the Fourth Proportional to 132,001.80, 198,000.90 and 43,258.20

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Solution

The fourth proportional to 132,001.80, 198,000.90 and 43,258.20 is: 64,886.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,001.80 : 198,000.90 = 43,258.20 : x
  2. Step 2: Convert to fraction form
    132,001.80/198,000.90 = 43,258.20/x
  3. Step 3: Cross multiply
    132,001.80x = 198,000.90 × 43,258.20
  4. Step 4: Simplify right side
    132,001.80x = 8,565,162,532.38
  5. Step 5: Solve for x
    x = 8,565,162,532.38/132,001.80
  6. Step 6: Final answer
    x = 64,886.71

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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.