Home / 165,864.70-228,893.27-90,413.20

Finding the Fourth Proportional to 165,864.70, 228,893.27 and 90,413.20

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Solution

The fourth proportional to 165,864.70, 228,893.27 and 90,413.20 is: 124,770.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,864.70 : 228,893.27 = 90,413.20 : x
  2. Step 2: Convert to fraction form
    165,864.70/228,893.27 = 90,413.20/x
  3. Step 3: Cross multiply
    165,864.70x = 228,893.27 × 90,413.20
  4. Step 4: Simplify right side
    165,864.70x = 20,694,972,999.16
  5. Step 5: Solve for x
    x = 20,694,972,999.16/165,864.70
  6. Step 6: Final answer
    x = 124,770.21

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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.