Home / 154,302.20-231,338.10-84,260.60

Finding the Fourth Proportional to 154,302.20, 231,338.10 and 84,260.60

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Solution

The fourth proportional to 154,302.20, 231,338.10 and 84,260.60 is: 126,327.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,302.20 : 231,338.10 = 84,260.60 : x
  2. Step 2: Convert to fraction form
    154,302.20/231,338.10 = 84,260.60/x
  3. Step 3: Cross multiply
    154,302.20x = 231,338.10 × 84,260.60
  4. Step 4: Simplify right side
    154,302.20x = 19,492,687,108.86
  5. Step 5: Solve for x
    x = 19,492,687,108.86/154,302.20
  6. Step 6: Final answer
    x = 126,327.99

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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.