Home / 121,544.32-167,739.59-67,839.91

Finding the Fourth Proportional to 121,544.32, 167,739.59 and 67,839.91

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Solution

The fourth proportional to 121,544.32, 167,739.59 and 67,839.91 is: 93,623.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,544.32 : 167,739.59 = 67,839.91 : x
  2. Step 2: Convert to fraction form
    121,544.32/167,739.59 = 67,839.91/x
  3. Step 3: Cross multiply
    121,544.32x = 167,739.59 × 67,839.91
  4. Step 4: Simplify right side
    121,544.32x = 11,379,438,689.04
  5. Step 5: Solve for x
    x = 11,379,438,689.04/121,544.32
  6. Step 6: Final answer
    x = 93,623.78

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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.