Home / 236,911.32-326,936.86-129,481.32

Finding the Fourth Proportional to 236,911.32, 326,936.86 and 129,481.32

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Solution

The fourth proportional to 236,911.32, 326,936.86 and 129,481.32 is: 178,683.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,911.32 : 326,936.86 = 129,481.32 : x
  2. Step 2: Convert to fraction form
    236,911.32/326,936.86 = 129,481.32/x
  3. Step 3: Cross multiply
    236,911.32x = 326,936.86 × 129,481.32
  4. Step 4: Simplify right side
    236,911.32x = 42,332,216,189.46
  5. Step 5: Solve for x
    x = 42,332,216,189.46/236,911.32
  6. Step 6: Final answer
    x = 178,683.81

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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.