Home / 111,945.66-154,470.33-68,947.62

Finding the Fourth Proportional to 111,945.66, 154,470.33 and 68,947.62

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Solution

The fourth proportional to 111,945.66, 154,470.33 and 68,947.62 is: 95,138.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,945.66 : 154,470.33 = 68,947.62 : x
  2. Step 2: Convert to fraction form
    111,945.66/154,470.33 = 68,947.62/x
  3. Step 3: Cross multiply
    111,945.66x = 154,470.33 × 68,947.62
  4. Step 4: Simplify right side
    111,945.66x = 10,650,361,614.11
  5. Step 5: Solve for x
    x = 10,650,361,614.11/111,945.66
  6. Step 6: Final answer
    x = 95,138.67

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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.