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Finding the Fourth Proportional to 131,794.80, 181,876.92 and 71,365.92

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Solution

The fourth proportional to 131,794.80, 181,876.92 and 71,365.92 is: 98,485.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,794.80 : 181,876.92 = 71,365.92 : x
  2. Step 2: Convert to fraction form
    131,794.80/181,876.92 = 71,365.92/x
  3. Step 3: Cross multiply
    131,794.80x = 181,876.92 × 71,365.92
  4. Step 4: Simplify right side
    131,794.80x = 12,979,813,722.57
  5. Step 5: Solve for x
    x = 12,979,813,722.57/131,794.80
  6. Step 6: Final answer
    x = 98,485.02

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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.