Home / 120,818.32-166,722.18-67,100.20

Finding the Fourth Proportional to 120,818.32, 166,722.18 and 67,100.20

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Solution

The fourth proportional to 120,818.32, 166,722.18 and 67,100.20 is: 92,594.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,818.32 : 166,722.18 = 67,100.20 : x
  2. Step 2: Convert to fraction form
    120,818.32/166,722.18 = 67,100.20/x
  3. Step 3: Cross multiply
    120,818.32x = 166,722.18 × 67,100.20
  4. Step 4: Simplify right side
    120,818.32x = 11,187,091,622.44
  5. Step 5: Solve for x
    x = 11,187,091,622.44/120,818.32
  6. Step 6: Final answer
    x = 92,594.33

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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.