Home / 231,789.40-347,684.10-84,026.20

Finding the Fourth Proportional to 231,789.40, 347,684.10 and 84,026.20

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Solution

The fourth proportional to 231,789.40, 347,684.10 and 84,026.20 is: 126,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,789.40 : 347,684.10 = 84,026.20 : x
  2. Step 2: Convert to fraction form
    231,789.40/347,684.10 = 84,026.20/x
  3. Step 3: Cross multiply
    231,789.40x = 347,684.10 × 84,026.20
  4. Step 4: Simplify right side
    231,789.40x = 29,214,573,723.42
  5. Step 5: Solve for x
    x = 29,214,573,723.42/231,789.40
  6. Step 6: Final answer
    x = 126,039.30

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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.