Home / 192,542.69-288,707.33-78,770.39

Finding the Fourth Proportional to 192,542.69, 288,707.33 and 78,770.39

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Solution

The fourth proportional to 192,542.69, 288,707.33 and 78,770.39 is: 118,111.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,542.69 : 288,707.33 = 78,770.39 : x
  2. Step 2: Convert to fraction form
    192,542.69/288,707.33 = 78,770.39/x
  3. Step 3: Cross multiply
    192,542.69x = 288,707.33 × 78,770.39
  4. Step 4: Simplify right side
    192,542.69x = 22,741,587,142.57
  5. Step 5: Solve for x
    x = 22,741,587,142.57/192,542.69
  6. Step 6: Final answer
    x = 118,111.92

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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.