Home / 160,450.82-221,413.34-87,839.66

Finding the Fourth Proportional to 160,450.82, 221,413.34 and 87,839.66

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Solution

The fourth proportional to 160,450.82, 221,413.34 and 87,839.66 is: 121,213.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,450.82 : 221,413.34 = 87,839.66 : x
  2. Step 2: Convert to fraction form
    160,450.82/221,413.34 = 87,839.66/x
  3. Step 3: Cross multiply
    160,450.82x = 221,413.34 × 87,839.66
  4. Step 4: Simplify right side
    160,450.82x = 19,448,872,505.06
  5. Step 5: Solve for x
    x = 19,448,872,505.06/160,450.82
  6. Step 6: Final answer
    x = 121,213.92

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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.