Home / 168,036.32-231,734.30-122,642.43

Finding the Fourth Proportional to 168,036.32, 231,734.30 and 122,642.43

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Solution

The fourth proportional to 168,036.32, 231,734.30 and 122,642.43 is: 169,132.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,036.32 : 231,734.30 = 122,642.43 : x
  2. Step 2: Convert to fraction form
    168,036.32/231,734.30 = 122,642.43/x
  3. Step 3: Cross multiply
    168,036.32x = 231,734.30 × 122,642.43
  4. Step 4: Simplify right side
    168,036.32x = 28,420,457,666.35
  5. Step 5: Solve for x
    x = 28,420,457,666.35/168,036.32
  6. Step 6: Final answer
    x = 169,132.83

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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.