Home / 192,423.12-288,479.13-80,187.90

Finding the Fourth Proportional to 192,423.12, 288,479.13 and 80,187.90

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Solution

The fourth proportional to 192,423.12, 288,479.13 and 80,187.90 is: 120,217.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,423.12 : 288,479.13 = 80,187.90 : x
  2. Step 2: Convert to fraction form
    192,423.12/288,479.13 = 80,187.90/x
  3. Step 3: Cross multiply
    192,423.12x = 288,479.13 × 80,187.90
  4. Step 4: Simplify right side
    192,423.12x = 23,132,535,628.53
  5. Step 5: Solve for x
    x = 23,132,535,628.53/192,423.12
  6. Step 6: Final answer
    x = 120,217.03

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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.