Home / 154,086.40-231,129.60-75,251.20

Finding the Fourth Proportional to 154,086.40, 231,129.60 and 75,251.20

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Solution

The fourth proportional to 154,086.40, 231,129.60 and 75,251.20 is: 112,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,086.40 : 231,129.60 = 75,251.20 : x
  2. Step 2: Convert to fraction form
    154,086.40/231,129.60 = 75,251.20/x
  3. Step 3: Cross multiply
    154,086.40x = 231,129.60 × 75,251.20
  4. Step 4: Simplify right side
    154,086.40x = 17,392,779,755.52
  5. Step 5: Solve for x
    x = 17,392,779,755.52/154,086.40
  6. Step 6: Final answer
    x = 112,876.80

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1.5x scale

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.