Home / 167,972.56-231,713.88-99,941.20

Finding the Fourth Proportional to 167,972.56, 231,713.88 and 99,941.20

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Solution

The fourth proportional to 167,972.56, 231,713.88 and 99,941.20 is: 137,866.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,972.56 : 231,713.88 = 99,941.20 : x
  2. Step 2: Convert to fraction form
    167,972.56/231,713.88 = 99,941.20/x
  3. Step 3: Cross multiply
    167,972.56x = 231,713.88 × 99,941.20
  4. Step 4: Simplify right side
    167,972.56x = 23,157,763,223.86
  5. Step 5: Solve for x
    x = 23,157,763,223.86/167,972.56
  6. Step 6: Final answer
    x = 137,866.35

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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.