Home / 132,546.19-182,912.32-78,830.03

Finding the Fourth Proportional to 132,546.19, 182,912.32 and 78,830.03

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Solution

The fourth proportional to 132,546.19, 182,912.32 and 78,830.03 is: 108,784.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,546.19 : 182,912.32 = 78,830.03 : x
  2. Step 2: Convert to fraction form
    132,546.19/182,912.32 = 78,830.03/x
  3. Step 3: Cross multiply
    132,546.19x = 182,912.32 × 78,830.03
  4. Step 4: Simplify right side
    132,546.19x = 14,418,982,758.41
  5. Step 5: Solve for x
    x = 14,418,982,758.41/132,546.19
  6. Step 6: Final answer
    x = 108,784.59

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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.