Home / 215,531.43-297,433.20-124,939.86

Finding the Fourth Proportional to 215,531.43, 297,433.20 and 124,939.86

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Solution

The fourth proportional to 215,531.43, 297,433.20 and 124,939.86 is: 172,416.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,531.43 : 297,433.20 = 124,939.86 : x
  2. Step 2: Convert to fraction form
    215,531.43/297,433.20 = 124,939.86/x
  3. Step 3: Cross multiply
    215,531.43x = 297,433.20 × 124,939.86
  4. Step 4: Simplify right side
    215,531.43x = 37,161,261,742.65
  5. Step 5: Solve for x
    x = 37,161,261,742.65/215,531.43
  6. Step 6: Final answer
    x = 172,416.91

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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.