Home / 128,861.06-193,319.35-38,896.24

Finding the Fourth Proportional to 128,861.06, 193,319.35 and 38,896.24

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Solution

The fourth proportional to 128,861.06, 193,319.35 and 38,896.24 is: 58,352.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,861.06 : 193,319.35 = 38,896.24 : x
  2. Step 2: Convert to fraction form
    128,861.06/193,319.35 = 38,896.24/x
  3. Step 3: Cross multiply
    128,861.06x = 193,319.35 × 38,896.24
  4. Step 4: Simplify right side
    128,861.06x = 7,519,394,867.65
  5. Step 5: Solve for x
    x = 7,519,394,867.65/128,861.06
  6. Step 6: Final answer
    x = 58,352.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.