Home / 187,909.17-281,568.12-145,318.86

Finding the Fourth Proportional to 187,909.17, 281,568.12 and 145,318.86

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Solution

The fourth proportional to 187,909.17, 281,568.12 and 145,318.86 is: 217,749.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,909.17 : 281,568.12 = 145,318.86 : x
  2. Step 2: Convert to fraction form
    187,909.17/281,568.12 = 145,318.86/x
  3. Step 3: Cross multiply
    187,909.17x = 281,568.12 × 145,318.86
  4. Step 4: Simplify right side
    187,909.17x = 40,917,158,891.93
  5. Step 5: Solve for x
    x = 40,917,158,891.93/187,909.17
  6. Step 6: Final answer
    x = 217,749.67

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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.