Home / 187,911.28-259,252.92-111,414.64

Finding the Fourth Proportional to 187,911.28, 259,252.92 and 111,414.64

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Solution

The fourth proportional to 187,911.28, 259,252.92 and 111,414.64 is: 153,713.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,911.28 : 259,252.92 = 111,414.64 : x
  2. Step 2: Convert to fraction form
    187,911.28/259,252.92 = 111,414.64/x
  3. Step 3: Cross multiply
    187,911.28x = 259,252.92 × 111,414.64
  4. Step 4: Simplify right side
    187,911.28x = 28,884,570,750.75
  5. Step 5: Solve for x
    x = 28,884,570,750.75/187,911.28
  6. Step 6: Final answer
    x = 153,713.87

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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.