Home / 165,605.25-228,535.79-90,154.29

Finding the Fourth Proportional to 165,605.25, 228,535.79 and 90,154.29

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Solution

The fourth proportional to 165,605.25, 228,535.79 and 90,154.29 is: 124,413.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,605.25 : 228,535.79 = 90,154.29 : x
  2. Step 2: Convert to fraction form
    165,605.25/228,535.79 = 90,154.29/x
  3. Step 3: Cross multiply
    165,605.25x = 228,535.79 × 90,154.29
  4. Step 4: Simplify right side
    165,605.25x = 20,603,481,436.27
  5. Step 5: Solve for x
    x = 20,603,481,436.27/165,605.25
  6. Step 6: Final answer
    x = 124,413.21

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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.