Home / 236,942.32-326,979.60-129,512.32

Finding the Fourth Proportional to 236,942.32, 326,979.60 and 129,512.32

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Solution

The fourth proportional to 236,942.32, 326,979.60 and 129,512.32 is: 178,726.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,942.32 : 326,979.60 = 129,512.32 : x
  2. Step 2: Convert to fraction form
    236,942.32/326,979.60 = 129,512.32/x
  3. Step 3: Cross multiply
    236,942.32x = 326,979.60 × 129,512.32
  4. Step 4: Simplify right side
    236,942.32x = 42,347,886,588.67
  5. Step 5: Solve for x
    x = 42,347,886,588.67/236,942.32
  6. Step 6: Final answer
    x = 178,726.56

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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.