Home / 138,439.60-207,659.40-44,945.35

Finding the Fourth Proportional to 138,439.60, 207,659.40 and 44,945.35

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Solution

The fourth proportional to 138,439.60, 207,659.40 and 44,945.35 is: 67,418.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,439.60 : 207,659.40 = 44,945.35 : x
  2. Step 2: Convert to fraction form
    138,439.60/207,659.40 = 44,945.35/x
  3. Step 3: Cross multiply
    138,439.60x = 207,659.40 × 44,945.35
  4. Step 4: Simplify right side
    138,439.60x = 9,333,324,413.79
  5. Step 5: Solve for x
    x = 9,333,324,413.79/138,439.60
  6. Step 6: Final answer
    x = 67,418.03

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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.