Home / 167,392.11-231,052.31-99,420.15

Finding the Fourth Proportional to 167,392.11, 231,052.31 and 99,420.15

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Solution

The fourth proportional to 167,392.11, 231,052.31 and 99,420.15 is: 137,230.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,392.11 : 231,052.31 = 99,420.15 : x
  2. Step 2: Convert to fraction form
    167,392.11/231,052.31 = 99,420.15/x
  3. Step 3: Cross multiply
    167,392.11x = 231,052.31 × 99,420.15
  4. Step 4: Simplify right side
    167,392.11x = 22,971,255,318.05
  5. Step 5: Solve for x
    x = 22,971,255,318.05/167,392.11
  6. Step 6: Final answer
    x = 137,230.22

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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.