Home / 132,512.05-198,692.54-90,443.06

Finding the Fourth Proportional to 132,512.05, 198,692.54 and 90,443.06

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Solution

The fourth proportional to 132,512.05, 198,692.54 and 90,443.06 is: 135,613.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,512.05 : 198,692.54 = 90,443.06 : x
  2. Step 2: Convert to fraction form
    132,512.05/198,692.54 = 90,443.06/x
  3. Step 3: Cross multiply
    132,512.05x = 198,692.54 × 90,443.06
  4. Step 4: Simplify right side
    132,512.05x = 17,970,361,316.77
  5. Step 5: Solve for x
    x = 17,970,361,316.77/132,512.05
  6. Step 6: Final answer
    x = 135,613.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.