Home / 121,323.30-167,337.03-80,413.44

Finding the Fourth Proportional to 121,323.30, 167,337.03 and 80,413.44

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Solution

The fourth proportional to 121,323.30, 167,337.03 and 80,413.44 is: 110,911.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,323.30 : 167,337.03 = 80,413.44 : x
  2. Step 2: Convert to fraction form
    121,323.30/167,337.03 = 80,413.44/x
  3. Step 3: Cross multiply
    121,323.30x = 167,337.03 × 80,413.44
  4. Step 4: Simplify right side
    121,323.30x = 13,456,146,221.68
  5. Step 5: Solve for x
    x = 13,456,146,221.68/121,323.30
  6. Step 6: Final answer
    x = 110,911.48

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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.