Home / 231,093.44-318,897.48-129,098.72

Finding the Fourth Proportional to 231,093.44, 318,897.48 and 129,098.72

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Solution

The fourth proportional to 231,093.44, 318,897.48 and 129,098.72 is: 178,149.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,093.44 : 318,897.48 = 129,098.72 : x
  2. Step 2: Convert to fraction form
    231,093.44/318,897.48 = 129,098.72/x
  3. Step 3: Cross multiply
    231,093.44x = 318,897.48 × 129,098.72
  4. Step 4: Simplify right side
    231,093.44x = 41,169,256,479.23
  5. Step 5: Solve for x
    x = 41,169,256,479.23/231,093.44
  6. Step 6: Final answer
    x = 178,149.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.