Home / 120,325.92-166,047.76-66,609.80

Finding the Fourth Proportional to 120,325.92, 166,047.76 and 66,609.80

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Solution

The fourth proportional to 120,325.92, 166,047.76 and 66,609.80 is: 91,920.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,325.92 : 166,047.76 = 66,609.80 : x
  2. Step 2: Convert to fraction form
    120,325.92/166,047.76 = 66,609.80/x
  3. Step 3: Cross multiply
    120,325.92x = 166,047.76 × 66,609.80
  4. Step 4: Simplify right side
    120,325.92x = 11,060,408,084.05
  5. Step 5: Solve for x
    x = 11,060,408,084.05/120,325.92
  6. Step 6: Final answer
    x = 91,920.41

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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.