Home / 120,363.20-166,099.19-66,647.07

Finding the Fourth Proportional to 120,363.20, 166,099.19 and 66,647.07

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Solution

The fourth proportional to 120,363.20, 166,099.19 and 66,647.07 is: 91,971.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,363.20 : 166,099.19 = 66,647.07 : x
  2. Step 2: Convert to fraction form
    120,363.20/166,099.19 = 66,647.07/x
  3. Step 3: Cross multiply
    120,363.20x = 166,099.19 × 66,647.07
  4. Step 4: Simplify right side
    120,363.20x = 11,070,023,512.38
  5. Step 5: Solve for x
    x = 11,070,023,512.38/120,363.20
  6. Step 6: Final answer
    x = 91,971.83

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1.5x scale

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.