Home / 102,707.28-154,059.92-55,344.72

Finding the Fourth Proportional to 102,707.28, 154,059.92 and 55,344.72

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Solution

The fourth proportional to 102,707.28, 154,059.92 and 55,344.72 is: 83,016.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,707.28 : 154,059.92 = 55,344.72 : x
  2. Step 2: Convert to fraction form
    102,707.28/154,059.92 = 55,344.72/x
  3. Step 3: Cross multiply
    102,707.28x = 154,059.92 × 55,344.72
  4. Step 4: Simplify right side
    102,707.28x = 8,526,403,135.62
  5. Step 5: Solve for x
    x = 8,526,403,135.62/102,707.28
  6. Step 6: Final answer
    x = 83,016.54

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1.5x scale

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.