Home / 154,251.24-231,112.80-84,179.76

Finding the Fourth Proportional to 154,251.24, 231,112.80 and 84,179.76

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Solution

The fourth proportional to 154,251.24, 231,112.80 and 84,179.76 is: 126,125.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,251.24 : 231,112.80 = 84,179.76 : x
  2. Step 2: Convert to fraction form
    154,251.24/231,112.80 = 84,179.76/x
  3. Step 3: Cross multiply
    154,251.24x = 231,112.80 × 84,179.76
  4. Step 4: Simplify right side
    154,251.24x = 19,455,020,036.93
  5. Step 5: Solve for x
    x = 19,455,020,036.93/154,251.24
  6. Step 6: Final answer
    x = 126,125.53

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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.