Home / 192,542.42-288,706.96-78,770.14

Finding the Fourth Proportional to 192,542.42, 288,706.96 and 78,770.14

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Solution

The fourth proportional to 192,542.42, 288,706.96 and 78,770.14 is: 118,111.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,542.42 : 288,706.96 = 78,770.14 : x
  2. Step 2: Convert to fraction form
    192,542.42/288,706.96 = 78,770.14/x
  3. Step 3: Cross multiply
    192,542.42x = 288,706.96 × 78,770.14
  4. Step 4: Simplify right side
    192,542.42x = 22,741,487,658.17
  5. Step 5: Solve for x
    x = 22,741,487,658.17/192,542.42
  6. Step 6: Final answer
    x = 118,111.57

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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.