Home / 187,205.18-258,389.57-106,680.47

Finding the Fourth Proportional to 187,205.18, 258,389.57 and 106,680.47

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Solution

The fourth proportional to 187,205.18, 258,389.57 and 106,680.47 is: 147,245.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,205.18 : 258,389.57 = 106,680.47 : x
  2. Step 2: Convert to fraction form
    187,205.18/258,389.57 = 106,680.47/x
  3. Step 3: Cross multiply
    187,205.18x = 258,389.57 × 106,680.47
  4. Step 4: Simplify right side
    187,205.18x = 27,565,119,745.45
  5. Step 5: Solve for x
    x = 27,565,119,745.45/187,205.18
  6. Step 6: Final answer
    x = 147,245.50

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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.