Home / 129,287.27-193,930.95-40,548.53

Finding the Fourth Proportional to 129,287.27, 193,930.95 and 40,548.53

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Solution

The fourth proportional to 129,287.27, 193,930.95 and 40,548.53 is: 60,822.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,287.27 : 193,930.95 = 40,548.53 : x
  2. Step 2: Convert to fraction form
    129,287.27/193,930.95 = 40,548.53/x
  3. Step 3: Cross multiply
    129,287.27x = 193,930.95 × 40,548.53
  4. Step 4: Simplify right side
    129,287.27x = 7,863,614,944.00
  5. Step 5: Solve for x
    x = 7,863,614,944.00/129,287.27
  6. Step 6: Final answer
    x = 60,822.81

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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.