Home / 187,911.42-281,571.50-145,321.11

Finding the Fourth Proportional to 187,911.42, 281,571.50 and 145,321.11

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Solution

The fourth proportional to 187,911.42, 281,571.50 and 145,321.11 is: 217,753.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,911.42 : 281,571.50 = 145,321.11 : x
  2. Step 2: Convert to fraction form
    187,911.42/281,571.50 = 145,321.11/x
  3. Step 3: Cross multiply
    187,911.42x = 281,571.50 × 145,321.11
  4. Step 4: Simplify right side
    187,911.42x = 40,918,282,197.76
  5. Step 5: Solve for x
    x = 40,918,282,197.76/187,911.42
  6. Step 6: Final answer
    x = 217,753.04

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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.