Home / 120,537.96-166,338.72-66,819.75

Finding the Fourth Proportional to 120,537.96, 166,338.72 and 66,819.75

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Solution

The fourth proportional to 120,537.96, 166,338.72 and 66,819.75 is: 92,209.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,537.96 : 166,338.72 = 66,819.75 : x
  2. Step 2: Convert to fraction form
    120,537.96/166,338.72 = 66,819.75/x
  3. Step 3: Cross multiply
    120,537.96x = 166,338.72 × 66,819.75
  4. Step 4: Simplify right side
    120,537.96x = 11,114,711,685.72
  5. Step 5: Solve for x
    x = 11,114,711,685.72/120,537.96
  6. Step 6: Final answer
    x = 92,209.22

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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.