Home / 143,608.76-215,413.26-68,711.24

Finding the Fourth Proportional to 143,608.76, 215,413.26 and 68,711.24

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Solution

The fourth proportional to 143,608.76, 215,413.26 and 68,711.24 is: 103,066.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,608.76 : 215,413.26 = 68,711.24 : x
  2. Step 2: Convert to fraction form
    143,608.76/215,413.26 = 68,711.24/x
  3. Step 3: Cross multiply
    143,608.76x = 215,413.26 × 68,711.24
  4. Step 4: Simplify right side
    143,608.76x = 14,801,312,207.04
  5. Step 5: Solve for x
    x = 14,801,312,207.04/143,608.76
  6. Step 6: Final answer
    x = 103,066.92

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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.