Home / 167,380.13-231,018.11-99,434.86

Finding the Fourth Proportional to 167,380.13, 231,018.11 and 99,434.86

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Solution

The fourth proportional to 167,380.13, 231,018.11 and 99,434.86 is: 137,240.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,380.13 : 231,018.11 = 99,434.86 : x
  2. Step 2: Convert to fraction form
    167,380.13/231,018.11 = 99,434.86/x
  3. Step 3: Cross multiply
    167,380.13x = 231,018.11 × 99,434.86
  4. Step 4: Simplify right side
    167,380.13x = 22,971,252,723.48
  5. Step 5: Solve for x
    x = 22,971,252,723.48/167,380.13
  6. Step 6: Final answer
    x = 137,240.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.