Home / 120,914.48-166,861.68-66,466.28

Finding the Fourth Proportional to 120,914.48, 166,861.68 and 66,466.28

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Solution

The fourth proportional to 120,914.48, 166,861.68 and 66,466.28 is: 91,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,914.48 : 166,861.68 = 66,466.28 : x
  2. Step 2: Convert to fraction form
    120,914.48/166,861.68 = 66,466.28/x
  3. Step 3: Cross multiply
    120,914.48x = 166,861.68 × 66,466.28
  4. Step 4: Simplify right side
    120,914.48x = 11,090,675,144.15
  5. Step 5: Solve for x
    x = 11,090,675,144.15/120,914.48
  6. Step 6: Final answer
    x = 91,723.30

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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.