Home / 132,143.68-198,139.38-43,372.54

Finding the Fourth Proportional to 132,143.68, 198,139.38 and 43,372.54

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Solution

The fourth proportional to 132,143.68, 198,139.38 and 43,372.54 is: 65,033.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,143.68 : 198,139.38 = 43,372.54 : x
  2. Step 2: Convert to fraction form
    132,143.68/198,139.38 = 43,372.54/x
  3. Step 3: Cross multiply
    132,143.68x = 198,139.38 × 43,372.54
  4. Step 4: Simplify right side
    132,143.68x = 8,593,808,184.63
  5. Step 5: Solve for x
    x = 8,593,808,184.63/132,143.68
  6. Step 6: Final answer
    x = 65,033.82

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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.