Home / 165,865.06-228,893.80-90,413.56

Finding the Fourth Proportional to 165,865.06, 228,893.80 and 90,413.56

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Solution

The fourth proportional to 165,865.06, 228,893.80 and 90,413.56 is: 124,770.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,865.06 : 228,893.80 = 90,413.56 : x
  2. Step 2: Convert to fraction form
    165,865.06/228,893.80 = 90,413.56/x
  3. Step 3: Cross multiply
    165,865.06x = 228,893.80 × 90,413.56
  4. Step 4: Simplify right side
    165,865.06x = 20,695,103,319.93
  5. Step 5: Solve for x
    x = 20,695,103,319.93/165,865.06
  6. Step 6: Final answer
    x = 124,770.72

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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.