Home / 236,540.10-326,413.35-129,109.26

Finding the Fourth Proportional to 236,540.10, 326,413.35 and 129,109.26

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Solution

The fourth proportional to 236,540.10, 326,413.35 and 129,109.26 is: 178,164.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,540.10 : 326,413.35 = 129,109.26 : x
  2. Step 2: Convert to fraction form
    236,540.10/326,413.35 = 129,109.26/x
  3. Step 3: Cross multiply
    236,540.10x = 326,413.35 × 129,109.26
  4. Step 4: Simplify right side
    236,540.10x = 42,142,986,072.62
  5. Step 5: Solve for x
    x = 42,142,986,072.62/236,540.10
  6. Step 6: Final answer
    x = 178,164.24

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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.