Home / 187,895.75-259,432.22-120,944.39

Finding the Fourth Proportional to 187,895.75, 259,432.22 and 120,944.39

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Solution

The fourth proportional to 187,895.75, 259,432.22 and 120,944.39 is: 166,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,895.75 : 259,432.22 = 120,944.39 : x
  2. Step 2: Convert to fraction form
    187,895.75/259,432.22 = 120,944.39/x
  3. Step 3: Cross multiply
    187,895.75x = 259,432.22 × 120,944.39
  4. Step 4: Simplify right side
    187,895.75x = 31,376,871,594.25
  5. Step 5: Solve for x
    x = 31,376,871,594.25/187,895.75
  6. Step 6: Final answer
    x = 166,990.85

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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.