Home / 140,182.09-193,449.96-86,445.61

Finding the Fourth Proportional to 140,182.09, 193,449.96 and 86,445.61

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Solution

The fourth proportional to 140,182.09, 193,449.96 and 86,445.61 is: 119,294.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,182.09 : 193,449.96 = 86,445.61 : x
  2. Step 2: Convert to fraction form
    140,182.09/193,449.96 = 86,445.61/x
  3. Step 3: Cross multiply
    140,182.09x = 193,449.96 × 86,445.61
  4. Step 4: Simplify right side
    140,182.09x = 16,722,899,796.68
  5. Step 5: Solve for x
    x = 16,722,899,796.68/140,182.09
  6. Step 6: Final answer
    x = 119,294.13

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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.