Home / 167,909.28-231,714.43-91,427.19

Finding the Fourth Proportional to 167,909.28, 231,714.43 and 91,427.19

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Solution

The fourth proportional to 167,909.28, 231,714.43 and 91,427.19 is: 126,169.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,909.28 : 231,714.43 = 91,427.19 : x
  2. Step 2: Convert to fraction form
    167,909.28/231,714.43 = 91,427.19/x
  3. Step 3: Cross multiply
    167,909.28x = 231,714.43 × 91,427.19
  4. Step 4: Simplify right side
    167,909.28x = 21,184,999,217.35
  5. Step 5: Solve for x
    x = 21,184,999,217.35/167,909.28
  6. Step 6: Final answer
    x = 126,169.32

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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.