Home / 192,503.03-288,803.75-74,142.59

Finding the Fourth Proportional to 192,503.03, 288,803.75 and 74,142.59

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Solution

The fourth proportional to 192,503.03, 288,803.75 and 74,142.59 is: 111,232.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,503.03 : 288,803.75 = 74,142.59 : x
  2. Step 2: Convert to fraction form
    192,503.03/288,803.75 = 74,142.59/x
  3. Step 3: Cross multiply
    192,503.03x = 288,803.75 × 74,142.59
  4. Step 4: Simplify right side
    192,503.03x = 21,412,656,211.98
  5. Step 5: Solve for x
    x = 21,412,656,211.98/192,503.03
  6. Step 6: Final answer
    x = 111,232.83

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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.