Home / 98,692.06-136,194.80-55,671.42

Finding the Fourth Proportional to 98,692.06, 136,194.80 and 55,671.42

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Solution

The fourth proportional to 98,692.06, 136,194.80 and 55,671.42 is: 76,826.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,692.06 : 136,194.80 = 55,671.42 : x
  2. Step 2: Convert to fraction form
    98,692.06/136,194.80 = 55,671.42/x
  3. Step 3: Cross multiply
    98,692.06x = 136,194.80 × 55,671.42
  4. Step 4: Simplify right side
    98,692.06x = 7,582,157,912.62
  5. Step 5: Solve for x
    x = 7,582,157,912.62/98,692.06
  6. Step 6: Final answer
    x = 76,826.42

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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.