Home / 99,118.72-136,692.44-67,335.04

Finding the Fourth Proportional to 99,118.72, 136,692.44 and 67,335.04

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Solution

The fourth proportional to 99,118.72, 136,692.44 and 67,335.04 is: 92,860.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,118.72 : 136,692.44 = 67,335.04 : x
  2. Step 2: Convert to fraction form
    99,118.72/136,692.44 = 67,335.04/x
  3. Step 3: Cross multiply
    99,118.72x = 136,692.44 × 67,335.04
  4. Step 4: Simplify right side
    99,118.72x = 9,204,190,915.10
  5. Step 5: Solve for x
    x = 9,204,190,915.10/99,118.72
  6. Step 6: Final answer
    x = 92,860.27

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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.