Home / 84,708.38-126,812.91-74,198.93

Finding the Fourth Proportional to 84,708.38, 126,812.91 and 74,198.93

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Solution

The fourth proportional to 84,708.38, 126,812.91 and 74,198.93 is: 111,079.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,708.38 : 126,812.91 = 74,198.93 : x
  2. Step 2: Convert to fraction form
    84,708.38/126,812.91 = 74,198.93/x
  3. Step 3: Cross multiply
    84,708.38x = 126,812.91 × 74,198.93
  4. Step 4: Simplify right side
    84,708.38x = 9,409,382,239.67
  5. Step 5: Solve for x
    x = 9,409,382,239.67/84,708.38
  6. Step 6: Final answer
    x = 111,079.71

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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.