Home / 187,680.95-258,999.32-101,639.66

Finding the Fourth Proportional to 187,680.95, 258,999.32 and 101,639.66

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Solution

The fourth proportional to 187,680.95, 258,999.32 and 101,639.66 is: 140,262.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,680.95 : 258,999.32 = 101,639.66 : x
  2. Step 2: Convert to fraction form
    187,680.95/258,999.32 = 101,639.66/x
  3. Step 3: Cross multiply
    187,680.95x = 258,999.32 × 101,639.66
  4. Step 4: Simplify right side
    187,680.95x = 26,324,603,241.00
  5. Step 5: Solve for x
    x = 26,324,603,241.00/187,680.95
  6. Step 6: Final answer
    x = 140,262.52

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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.