Home / 120,534.76-166,333.14-66,085.78

Finding the Fourth Proportional to 120,534.76, 166,333.14 and 66,085.78

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Solution

The fourth proportional to 120,534.76, 166,333.14 and 66,085.78 is: 91,195.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,534.76 : 166,333.14 = 66,085.78 : x
  2. Step 2: Convert to fraction form
    120,534.76/166,333.14 = 66,085.78/x
  3. Step 3: Cross multiply
    120,534.76x = 166,333.14 × 66,085.78
  4. Step 4: Simplify right side
    120,534.76x = 10,992,255,296.75
  5. Step 5: Solve for x
    x = 10,992,255,296.75/120,534.76
  6. Step 6: Final answer
    x = 91,195.73

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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.