Home / 120,305.59-166,023.18-66,595.61

Finding the Fourth Proportional to 120,305.59, 166,023.18 and 66,595.61

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Solution

The fourth proportional to 120,305.59, 166,023.18 and 66,595.61 is: 91,902.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,305.59 : 166,023.18 = 66,595.61 : x
  2. Step 2: Convert to fraction form
    120,305.59/166,023.18 = 66,595.61/x
  3. Step 3: Cross multiply
    120,305.59x = 166,023.18 × 66,595.61
  4. Step 4: Simplify right side
    120,305.59x = 11,056,414,946.24
  5. Step 5: Solve for x
    x = 11,056,414,946.24/120,305.59
  6. Step 6: Final answer
    x = 91,902.75

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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.