Home / 142,979.43-214,329.69-68,079.45

Finding the Fourth Proportional to 142,979.43, 214,329.69 and 68,079.45

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Solution

The fourth proportional to 142,979.43, 214,329.69 and 68,079.45 is: 102,052.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,979.43 : 214,329.69 = 68,079.45 : x
  2. Step 2: Convert to fraction form
    142,979.43/214,329.69 = 68,079.45/x
  3. Step 3: Cross multiply
    142,979.43x = 214,329.69 × 68,079.45
  4. Step 4: Simplify right side
    142,979.43x = 14,591,447,413.87
  5. Step 5: Solve for x
    x = 14,591,447,413.87/142,979.43
  6. Step 6: Final answer
    x = 102,052.77

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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.