Home / 121,546.40-182,319.60-68,183.60

Finding the Fourth Proportional to 121,546.40, 182,319.60 and 68,183.60

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Solution

The fourth proportional to 121,546.40, 182,319.60 and 68,183.60 is: 102,275.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,546.40 : 182,319.60 = 68,183.60 : x
  2. Step 2: Convert to fraction form
    121,546.40/182,319.60 = 68,183.60/x
  3. Step 3: Cross multiply
    121,546.40x = 182,319.60 × 68,183.60
  4. Step 4: Simplify right side
    121,546.40x = 12,431,206,678.56
  5. Step 5: Solve for x
    x = 12,431,206,678.56/121,546.40
  6. Step 6: Final answer
    x = 102,275.40

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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.