Home / 131,708.43-197,363.08-87,175.64

Finding the Fourth Proportional to 131,708.43, 197,363.08 and 87,175.64

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Solution

The fourth proportional to 131,708.43, 197,363.08 and 87,175.64 is: 130,631.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,708.43 : 197,363.08 = 87,175.64 : x
  2. Step 2: Convert to fraction form
    131,708.43/197,363.08 = 87,175.64/x
  3. Step 3: Cross multiply
    131,708.43x = 197,363.08 × 87,175.64
  4. Step 4: Simplify right side
    131,708.43x = 17,205,253,413.75
  5. Step 5: Solve for x
    x = 17,205,253,413.75/131,708.43
  6. Step 6: Final answer
    x = 130,631.38

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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.