Home / 187,255.28-258,413.20-102,372.34

Finding the Fourth Proportional to 187,255.28, 258,413.20 and 102,372.34

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Solution

The fourth proportional to 187,255.28, 258,413.20 and 102,372.34 is: 141,274.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,255.28 : 258,413.20 = 102,372.34 : x
  2. Step 2: Convert to fraction form
    187,255.28/258,413.20 = 102,372.34/x
  3. Step 3: Cross multiply
    187,255.28x = 258,413.20 × 102,372.34
  4. Step 4: Simplify right side
    187,255.28x = 26,454,363,970.89
  5. Step 5: Solve for x
    x = 26,454,363,970.89/187,255.28
  6. Step 6: Final answer
    x = 141,274.33

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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.