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Finding the Fourth Proportional to 121,413.84, 167,553.24 and 66,972.24

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Solution

The fourth proportional to 121,413.84, 167,553.24 and 66,972.24 is: 92,422.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,413.84 : 167,553.24 = 66,972.24 : x
  2. Step 2: Convert to fraction form
    121,413.84/167,553.24 = 66,972.24/x
  3. Step 3: Cross multiply
    121,413.84x = 167,553.24 × 66,972.24
  4. Step 4: Simplify right side
    121,413.84x = 11,221,415,802.06
  5. Step 5: Solve for x
    x = 11,221,415,802.06/121,413.84
  6. Step 6: Final answer
    x = 92,422.87

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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.