Home / 138,921.52-208,413.04-44,180.68

Finding the Fourth Proportional to 138,921.52, 208,413.04 and 44,180.68

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Solution

The fourth proportional to 138,921.52, 208,413.04 and 44,180.68 is: 66,280.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,921.52 : 208,413.04 = 44,180.68 : x
  2. Step 2: Convert to fraction form
    138,921.52/208,413.04 = 44,180.68/x
  3. Step 3: Cross multiply
    138,921.52x = 208,413.04 × 44,180.68
  4. Step 4: Simplify right side
    138,921.52x = 9,207,830,451.75
  5. Step 5: Solve for x
    x = 9,207,830,451.75/138,921.52
  6. Step 6: Final answer
    x = 66,280.81

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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.