Home / 111,025.20-166,278.60-84,586.80

Finding the Fourth Proportional to 111,025.20, 166,278.60 and 84,586.80

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Solution

The fourth proportional to 111,025.20, 166,278.60 and 84,586.80 is: 126,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,025.20 : 166,278.60 = 84,586.80 : x
  2. Step 2: Convert to fraction form
    111,025.20/166,278.60 = 84,586.80/x
  3. Step 3: Cross multiply
    111,025.20x = 166,278.60 × 84,586.80
  4. Step 4: Simplify right side
    111,025.20x = 14,064,974,682.48
  5. Step 5: Solve for x
    x = 14,064,974,682.48/111,025.20
  6. Step 6: Final answer
    x = 126,682.72

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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.