Home / 236,716.89-326,664.24-129,287.34

Finding the Fourth Proportional to 236,716.89, 326,664.24 and 129,287.34

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Solution

The fourth proportional to 236,716.89, 326,664.24 and 129,287.34 is: 178,413.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,716.89 : 326,664.24 = 129,287.34 : x
  2. Step 2: Convert to fraction form
    236,716.89/326,664.24 = 129,287.34/x
  3. Step 3: Cross multiply
    236,716.89x = 326,664.24 × 129,287.34
  4. Step 4: Simplify right side
    236,716.89x = 42,233,549,029.40
  5. Step 5: Solve for x
    x = 42,233,549,029.40/236,716.89
  6. Step 6: Final answer
    x = 178,413.76

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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.