Home / 121,408.20-182,112.30-88,360.20

Finding the Fourth Proportional to 121,408.20, 182,112.30 and 88,360.20

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Solution

The fourth proportional to 121,408.20, 182,112.30 and 88,360.20 is: 132,540.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,408.20 : 182,112.30 = 88,360.20 : x
  2. Step 2: Convert to fraction form
    121,408.20/182,112.30 = 88,360.20/x
  3. Step 3: Cross multiply
    121,408.20x = 182,112.30 × 88,360.20
  4. Step 4: Simplify right side
    121,408.20x = 16,091,479,250.46
  5. Step 5: Solve for x
    x = 16,091,479,250.46/121,408.20
  6. Step 6: Final answer
    x = 132,540.30

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1.5x scale

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.