Home / 88,143.43-121,738.09-59,413.54

Finding the Fourth Proportional to 88,143.43, 121,738.09 and 59,413.54

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Solution

The fourth proportional to 88,143.43, 121,738.09 and 59,413.54 is: 82,058.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,143.43 : 121,738.09 = 59,413.54 : x
  2. Step 2: Convert to fraction form
    88,143.43/121,738.09 = 59,413.54/x
  3. Step 3: Cross multiply
    88,143.43x = 121,738.09 × 59,413.54
  4. Step 4: Simplify right side
    88,143.43x = 7,232,890,734.84
  5. Step 5: Solve for x
    x = 7,232,890,734.84/88,143.43
  6. Step 6: Final answer
    x = 82,058.19

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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.