Home / 185,861.12-256,469.84-105,272.56

Finding the Fourth Proportional to 185,861.12, 256,469.84 and 105,272.56

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Solution

The fourth proportional to 185,861.12, 256,469.84 and 105,272.56 is: 145,265.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,861.12 : 256,469.84 = 105,272.56 : x
  2. Step 2: Convert to fraction form
    185,861.12/256,469.84 = 105,272.56/x
  3. Step 3: Cross multiply
    185,861.12x = 256,469.84 × 105,272.56
  4. Step 4: Simplify right side
    185,861.12x = 26,999,236,619.59
  5. Step 5: Solve for x
    x = 26,999,236,619.59/185,861.12
  6. Step 6: Final answer
    x = 145,265.65

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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.