Home / 135,413.18-186,867.89-74,982.52

Finding the Fourth Proportional to 135,413.18, 186,867.89 and 74,982.52

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Solution

The fourth proportional to 135,413.18, 186,867.89 and 74,982.52 is: 103,474.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,413.18 : 186,867.89 = 74,982.52 : x
  2. Step 2: Convert to fraction form
    135,413.18/186,867.89 = 74,982.52/x
  3. Step 3: Cross multiply
    135,413.18x = 186,867.89 × 74,982.52
  4. Step 4: Simplify right side
    135,413.18x = 14,011,825,648.92
  5. Step 5: Solve for x
    x = 14,011,825,648.92/135,413.18
  6. Step 6: Final answer
    x = 103,474.61

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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.