Home / 187,677.15-259,019.41-107,086.20

Finding the Fourth Proportional to 187,677.15, 259,019.41 and 107,086.20

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Solution

The fourth proportional to 187,677.15, 259,019.41 and 107,086.20 is: 147,793.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,677.15 : 259,019.41 = 107,086.20 : x
  2. Step 2: Convert to fraction form
    187,677.15/259,019.41 = 107,086.20/x
  3. Step 3: Cross multiply
    187,677.15x = 259,019.41 × 107,086.20
  4. Step 4: Simplify right side
    187,677.15x = 27,737,403,427.88
  5. Step 5: Solve for x
    x = 27,737,403,427.88/187,677.15
  6. Step 6: Final answer
    x = 147,793.19

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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.