Home / 131,267.82-181,146.57-80,281.11

Finding the Fourth Proportional to 131,267.82, 181,146.57 and 80,281.11

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Solution

The fourth proportional to 131,267.82, 181,146.57 and 80,281.11 is: 110,786.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,267.82 : 181,146.57 = 80,281.11 : x
  2. Step 2: Convert to fraction form
    131,267.82/181,146.57 = 80,281.11/x
  3. Step 3: Cross multiply
    131,267.82x = 181,146.57 × 80,281.11
  4. Step 4: Simplify right side
    131,267.82x = 14,542,647,712.29
  5. Step 5: Solve for x
    x = 14,542,647,712.29/131,267.82
  6. Step 6: Final answer
    x = 110,786.08

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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.