Home / 231,017.13-318,814.25-127,665.86

Finding the Fourth Proportional to 231,017.13, 318,814.25 and 127,665.86

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Solution

The fourth proportional to 231,017.13, 318,814.25 and 127,665.86 is: 176,184.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,017.13 : 318,814.25 = 127,665.86 : x
  2. Step 2: Convert to fraction form
    231,017.13/318,814.25 = 127,665.86/x
  3. Step 3: Cross multiply
    231,017.13x = 318,814.25 × 127,665.86
  4. Step 4: Simplify right side
    231,017.13x = 40,701,693,174.10
  5. Step 5: Solve for x
    x = 40,701,693,174.10/231,017.13
  6. Step 6: Final answer
    x = 176,184.74

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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.