Home / 131,907.94-181,964.10-80,932.04

Finding the Fourth Proportional to 131,907.94, 181,964.10 and 80,932.04

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Solution

The fourth proportional to 131,907.94, 181,964.10 and 80,932.04 is: 111,643.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,907.94 : 181,964.10 = 80,932.04 : x
  2. Step 2: Convert to fraction form
    131,907.94/181,964.10 = 80,932.04/x
  3. Step 3: Cross multiply
    131,907.94x = 181,964.10 × 80,932.04
  4. Step 4: Simplify right side
    131,907.94x = 14,726,725,852.66
  5. Step 5: Solve for x
    x = 14,726,725,852.66/131,907.94
  6. Step 6: Final answer
    x = 111,643.97

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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.