Home / 132,918.20-199,319.70-54,006.20

Finding the Fourth Proportional to 132,918.20, 199,319.70 and 54,006.20

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Solution

The fourth proportional to 132,918.20, 199,319.70 and 54,006.20 is: 80,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,918.20 : 199,319.70 = 54,006.20 : x
  2. Step 2: Convert to fraction form
    132,918.20/199,319.70 = 54,006.20/x
  3. Step 3: Cross multiply
    132,918.20x = 199,319.70 × 54,006.20
  4. Step 4: Simplify right side
    132,918.20x = 10,764,499,582.14
  5. Step 5: Solve for x
    x = 10,764,499,582.14/132,918.20
  6. Step 6: Final answer
    x = 80,985.90

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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.