Home / 132,881.90-199,218.20-66,287.75

Finding the Fourth Proportional to 132,881.90, 199,218.20 and 66,287.75

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Solution

The fourth proportional to 132,881.90, 199,218.20 and 66,287.75 is: 99,379.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,881.90 : 199,218.20 = 66,287.75 : x
  2. Step 2: Convert to fraction form
    132,881.90/199,218.20 = 66,287.75/x
  3. Step 3: Cross multiply
    132,881.90x = 199,218.20 × 66,287.75
  4. Step 4: Simplify right side
    132,881.90x = 13,205,724,909.52
  5. Step 5: Solve for x
    x = 13,205,724,909.52/132,881.90
  6. Step 6: Final answer
    x = 99,379.41

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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.