Home / 220,243.12-303,883.23-129,603.04

Finding the Fourth Proportional to 220,243.12, 303,883.23 and 129,603.04

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Solution

The fourth proportional to 220,243.12, 303,883.23 and 129,603.04 is: 178,821.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,243.12 : 303,883.23 = 129,603.04 : x
  2. Step 2: Convert to fraction form
    220,243.12/303,883.23 = 129,603.04/x
  3. Step 3: Cross multiply
    220,243.12x = 303,883.23 × 129,603.04
  4. Step 4: Simplify right side
    220,243.12x = 39,384,190,413.02
  5. Step 5: Solve for x
    x = 39,384,190,413.02/220,243.12
  6. Step 6: Final answer
    x = 178,821.43

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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.