Home / 121,441.73-182,002.66-68,132.69

Finding the Fourth Proportional to 121,441.73, 182,002.66 and 68,132.69

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Solution

The fourth proportional to 121,441.73, 182,002.66 and 68,132.69 is: 102,109.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,441.73 : 182,002.66 = 68,132.69 : x
  2. Step 2: Convert to fraction form
    121,441.73/182,002.66 = 68,132.69/x
  3. Step 3: Cross multiply
    121,441.73x = 182,002.66 × 68,132.69
  4. Step 4: Simplify right side
    121,441.73x = 12,400,330,812.96
  5. Step 5: Solve for x
    x = 12,400,330,812.96/121,441.73
  6. Step 6: Final answer
    x = 102,109.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.