Home / 131,092.23-180,921.15-80,134.79

Finding the Fourth Proportional to 131,092.23, 180,921.15 and 80,134.79

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Solution

The fourth proportional to 131,092.23, 180,921.15 and 80,134.79 is: 110,594.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,092.23 : 180,921.15 = 80,134.79 : x
  2. Step 2: Convert to fraction form
    131,092.23/180,921.15 = 80,134.79/x
  3. Step 3: Cross multiply
    131,092.23x = 180,921.15 × 80,134.79
  4. Step 4: Simplify right side
    131,092.23x = 14,498,078,191.42
  5. Step 5: Solve for x
    x = 14,498,078,191.42/131,092.23
  6. Step 6: Final answer
    x = 110,594.49

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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.