Home / 154,479.07-231,806.18-83,400.76

Finding the Fourth Proportional to 154,479.07, 231,806.18 and 83,400.76

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Solution

The fourth proportional to 154,479.07, 231,806.18 and 83,400.76 is: 125,148.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,479.07 : 231,806.18 = 83,400.76 : x
  2. Step 2: Convert to fraction form
    154,479.07/231,806.18 = 83,400.76/x
  3. Step 3: Cross multiply
    154,479.07x = 231,806.18 × 83,400.76
  4. Step 4: Simplify right side
    154,479.07x = 19,332,811,584.70
  5. Step 5: Solve for x
    x = 19,332,811,584.70/154,479.07
  6. Step 6: Final answer
    x = 125,148.42

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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.