Home / 132,961.98-183,471.06-81,305.04

Finding the Fourth Proportional to 132,961.98, 183,471.06 and 81,305.04

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Solution

The fourth proportional to 132,961.98, 183,471.06 and 81,305.04 is: 112,190.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,961.98 : 183,471.06 = 81,305.04 : x
  2. Step 2: Convert to fraction form
    132,961.98/183,471.06 = 81,305.04/x
  3. Step 3: Cross multiply
    132,961.98x = 183,471.06 × 81,305.04
  4. Step 4: Simplify right side
    132,961.98x = 14,917,121,872.14
  5. Step 5: Solve for x
    x = 14,917,121,872.14/132,961.98
  6. Step 6: Final answer
    x = 112,190.88

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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.