Home / 143,730.14-215,578.68-38,540.84

Finding the Fourth Proportional to 143,730.14, 215,578.68 and 38,540.84

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Solution

The fourth proportional to 143,730.14, 215,578.68 and 38,540.84 is: 57,806.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,730.14 : 215,578.68 = 38,540.84 : x
  2. Step 2: Convert to fraction form
    143,730.14/215,578.68 = 38,540.84/x
  3. Step 3: Cross multiply
    143,730.14x = 215,578.68 × 38,540.84
  4. Step 4: Simplify right side
    143,730.14x = 8,308,583,413.29
  5. Step 5: Solve for x
    x = 8,308,583,413.29/143,730.14
  6. Step 6: Final answer
    x = 57,806.83

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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.