Home / 140,393.18-193,680.42-83,771.84

Finding the Fourth Proportional to 140,393.18, 193,680.42 and 83,771.84

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Solution

The fourth proportional to 140,393.18, 193,680.42 and 83,771.84 is: 115,568.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,393.18 : 193,680.42 = 83,771.84 : x
  2. Step 2: Convert to fraction form
    140,393.18/193,680.42 = 83,771.84/x
  3. Step 3: Cross multiply
    140,393.18x = 193,680.42 × 83,771.84
  4. Step 4: Simplify right side
    140,393.18x = 16,224,965,155.37
  5. Step 5: Solve for x
    x = 16,224,965,155.37/140,393.18
  6. Step 6: Final answer
    x = 115,568.04

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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.