Home / 120,494.00-166,279.20-66,778.55

Finding the Fourth Proportional to 120,494.00, 166,279.20 and 66,778.55

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Solution

The fourth proportional to 120,494.00, 166,279.20 and 66,778.55 is: 92,153.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,494.00 : 166,279.20 = 66,778.55 : x
  2. Step 2: Convert to fraction form
    120,494.00/166,279.20 = 66,778.55/x
  3. Step 3: Cross multiply
    120,494.00x = 166,279.20 × 66,778.55
  4. Step 4: Simplify right side
    120,494.00x = 11,103,883,412.89
  5. Step 5: Solve for x
    x = 11,103,883,412.89/120,494.00
  6. Step 6: Final answer
    x = 92,153.00

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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.