Home / 140,764.16-194,319.36-83,399.68

Finding the Fourth Proportional to 140,764.16, 194,319.36 and 83,399.68

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Solution

The fourth proportional to 140,764.16, 194,319.36 and 83,399.68 is: 115,129.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,764.16 : 194,319.36 = 83,399.68 : x
  2. Step 2: Convert to fraction form
    140,764.16/194,319.36 = 83,399.68/x
  3. Step 3: Cross multiply
    140,764.16x = 194,319.36 × 83,399.68
  4. Step 4: Simplify right side
    140,764.16x = 16,206,172,441.80
  5. Step 5: Solve for x
    x = 16,206,172,441.80/140,764.16
  6. Step 6: Final answer
    x = 115,129.96

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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.