Home / 129,685.56-194,455.38-40,922.52

Finding the Fourth Proportional to 129,685.56, 194,455.38 and 40,922.52

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Solution

The fourth proportional to 129,685.56, 194,455.38 and 40,922.52 is: 61,360.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,685.56 : 194,455.38 = 40,922.52 : x
  2. Step 2: Convert to fraction form
    129,685.56/194,455.38 = 40,922.52/x
  3. Step 3: Cross multiply
    129,685.56x = 194,455.38 × 40,922.52
  4. Step 4: Simplify right side
    129,685.56x = 7,957,604,177.16
  5. Step 5: Solve for x
    x = 7,957,604,177.16/129,685.56
  6. Step 6: Final answer
    x = 61,360.76

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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.