Home / 120,337.38-166,066.89-66,623.28

Finding the Fourth Proportional to 120,337.38, 166,066.89 and 66,623.28

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Solution

The fourth proportional to 120,337.38, 166,066.89 and 66,623.28 is: 91,940.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,337.38 : 166,066.89 = 66,623.28 : x
  2. Step 2: Convert to fraction form
    120,337.38/166,066.89 = 66,623.28/x
  3. Step 3: Cross multiply
    120,337.38x = 166,066.89 × 66,623.28
  4. Step 4: Simplify right side
    120,337.38x = 11,063,920,911.20
  5. Step 5: Solve for x
    x = 11,063,920,911.20/120,337.38
  6. Step 6: Final answer
    x = 91,940.85

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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.