Home / 131,659.20-181,711.42-80,700.27

Finding the Fourth Proportional to 131,659.20, 181,711.42 and 80,700.27

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Solution

The fourth proportional to 131,659.20, 181,711.42 and 80,700.27 is: 111,379.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,659.20 : 181,711.42 = 80,700.27 : x
  2. Step 2: Convert to fraction form
    131,659.20/181,711.42 = 80,700.27/x
  3. Step 3: Cross multiply
    131,659.20x = 181,711.42 × 80,700.27
  4. Step 4: Simplify right side
    131,659.20x = 14,664,160,656.08
  5. Step 5: Solve for x
    x = 14,664,160,656.08/131,659.20
  6. Step 6: Final answer
    x = 111,379.69

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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.