Home / 120,532.10-166,318.92-66,816.63

Finding the Fourth Proportional to 120,532.10, 166,318.92 and 66,816.63

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Solution

The fourth proportional to 120,532.10, 166,318.92 and 66,816.63 is: 92,198.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,532.10 : 166,318.92 = 66,816.63 : x
  2. Step 2: Convert to fraction form
    120,532.10/166,318.92 = 66,816.63/x
  3. Step 3: Cross multiply
    120,532.10x = 166,318.92 × 66,816.63
  4. Step 4: Simplify right side
    120,532.10x = 11,112,869,739.64
  5. Step 5: Solve for x
    x = 11,112,869,739.64/120,532.10
  6. Step 6: Final answer
    x = 92,198.43

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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.