Home / 139,177.20-192,065.07-75,514.95

Finding the Fourth Proportional to 139,177.20, 192,065.07 and 75,514.95

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Solution

The fourth proportional to 139,177.20, 192,065.07 and 75,514.95 is: 104,210.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,177.20 : 192,065.07 = 75,514.95 : x
  2. Step 2: Convert to fraction form
    139,177.20/192,065.07 = 75,514.95/x
  3. Step 3: Cross multiply
    139,177.20x = 192,065.07 × 75,514.95
  4. Step 4: Simplify right side
    139,177.20x = 14,503,784,157.80
  5. Step 5: Solve for x
    x = 14,503,784,157.80/139,177.20
  6. Step 6: Final answer
    x = 104,210.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.