Home / 121,566.80-167,757.80-76,269.18

Finding the Fourth Proportional to 121,566.80, 167,757.80 and 76,269.18

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Solution

The fourth proportional to 121,566.80, 167,757.80 and 76,269.18 is: 105,248.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,566.80 : 167,757.80 = 76,269.18 : x
  2. Step 2: Convert to fraction form
    121,566.80/167,757.80 = 76,269.18/x
  3. Step 3: Cross multiply
    121,566.80x = 167,757.80 × 76,269.18
  4. Step 4: Simplify right side
    121,566.80x = 12,794,749,844.60
  5. Step 5: Solve for x
    x = 12,794,749,844.60/121,566.80
  6. Step 6: Final answer
    x = 105,248.72

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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.