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Finding the Fourth Proportional to 132,079.69, 198,133.38 and 57,207.40

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Solution

The fourth proportional to 132,079.69, 198,133.38 and 57,207.40 is: 85,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,079.69 : 198,133.38 = 57,207.40 : x
  2. Step 2: Convert to fraction form
    132,079.69/198,133.38 = 57,207.40/x
  3. Step 3: Cross multiply
    132,079.69x = 198,133.38 × 57,207.40
  4. Step 4: Simplify right side
    132,079.69x = 11,334,695,523.01
  5. Step 5: Solve for x
    x = 11,334,695,523.01/132,079.69
  6. Step 6: Final answer
    x = 85,817.10

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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.