Home / 154,260.24-231,126.30-84,188.76

Finding the Fourth Proportional to 154,260.24, 231,126.30 and 84,188.76

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Solution

The fourth proportional to 154,260.24, 231,126.30 and 84,188.76 is: 126,139.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,260.24 : 231,126.30 = 84,188.76 : x
  2. Step 2: Convert to fraction form
    154,260.24/231,126.30 = 84,188.76/x
  3. Step 3: Cross multiply
    154,260.24x = 231,126.30 × 84,188.76
  4. Step 4: Simplify right side
    154,260.24x = 19,458,236,600.39
  5. Step 5: Solve for x
    x = 19,458,236,600.39/154,260.24
  6. Step 6: Final answer
    x = 126,139.03

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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.