Home / 231,050.22-318,837.88-129,055.38

Finding the Fourth Proportional to 231,050.22, 318,837.88 and 129,055.38

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Solution

The fourth proportional to 231,050.22, 318,837.88 and 129,055.38 is: 178,090.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,050.22 : 318,837.88 = 129,055.38 : x
  2. Step 2: Convert to fraction form
    231,050.22/318,837.88 = 129,055.38/x
  3. Step 3: Cross multiply
    231,050.22x = 318,837.88 × 129,055.38
  4. Step 4: Simplify right side
    231,050.22x = 41,147,743,761.79
  5. Step 5: Solve for x
    x = 41,147,743,761.79/231,050.22
  6. Step 6: Final answer
    x = 178,090.04

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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.