Home / 140,039.54-193,199.55-86,231.24

Finding the Fourth Proportional to 140,039.54, 193,199.55 and 86,231.24

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Solution

The fourth proportional to 140,039.54, 193,199.55 and 86,231.24 is: 118,965.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,039.54 : 193,199.55 = 86,231.24 : x
  2. Step 2: Convert to fraction form
    140,039.54/193,199.55 = 86,231.24/x
  3. Step 3: Cross multiply
    140,039.54x = 193,199.55 × 86,231.24
  4. Step 4: Simplify right side
    140,039.54x = 16,659,836,763.94
  5. Step 5: Solve for x
    x = 16,659,836,763.94/140,039.54
  6. Step 6: Final answer
    x = 118,965.23

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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.