Home / 148,629.31-223,016.86-69,749.95

Finding the Fourth Proportional to 148,629.31, 223,016.86 and 69,749.95

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Solution

The fourth proportional to 148,629.31, 223,016.86 and 69,749.95 is: 104,659.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,629.31 : 223,016.86 = 69,749.95 : x
  2. Step 2: Convert to fraction form
    148,629.31/223,016.86 = 69,749.95/x
  3. Step 3: Cross multiply
    148,629.31x = 223,016.86 × 69,749.95
  4. Step 4: Simplify right side
    148,629.31x = 15,555,414,363.80
  5. Step 5: Solve for x
    x = 15,555,414,363.80/148,629.31
  6. Step 6: Final answer
    x = 104,659.13

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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.