Home / 192,422.62-288,478.38-80,187.40

Finding the Fourth Proportional to 192,422.62, 288,478.38 and 80,187.40

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Solution

The fourth proportional to 192,422.62, 288,478.38 and 80,187.40 is: 120,216.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,422.62 : 288,478.38 = 80,187.40 : x
  2. Step 2: Convert to fraction form
    192,422.62/288,478.38 = 80,187.40/x
  3. Step 3: Cross multiply
    192,422.62x = 288,478.38 × 80,187.40
  4. Step 4: Simplify right side
    192,422.62x = 23,132,331,248.41
  5. Step 5: Solve for x
    x = 23,132,331,248.41/192,422.62
  6. Step 6: Final answer
    x = 120,216.28

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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.