Home / 132,986.30-199,307.10-54,008.78

Finding the Fourth Proportional to 132,986.30, 199,307.10 and 54,008.78

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Solution

The fourth proportional to 132,986.30, 199,307.10 and 54,008.78 is: 80,943.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,986.30 : 199,307.10 = 54,008.78 : x
  2. Step 2: Convert to fraction form
    132,986.30/199,307.10 = 54,008.78/x
  3. Step 3: Cross multiply
    132,986.30x = 199,307.10 × 54,008.78
  4. Step 4: Simplify right side
    132,986.30x = 10,764,332,615.54
  5. Step 5: Solve for x
    x = 10,764,332,615.54/132,986.30
  6. Step 6: Final answer
    x = 80,943.17

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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.