Home / 236,785.89-326,769.36-129,362.88

Finding the Fourth Proportional to 236,785.89, 326,769.36 and 129,362.88

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Solution

The fourth proportional to 236,785.89, 326,769.36 and 129,362.88 is: 178,523.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,785.89 : 326,769.36 = 129,362.88 : x
  2. Step 2: Convert to fraction form
    236,785.89/326,769.36 = 129,362.88/x
  3. Step 3: Cross multiply
    236,785.89x = 326,769.36 × 129,362.88
  4. Step 4: Simplify right side
    236,785.89x = 42,271,825,505.36
  5. Step 5: Solve for x
    x = 42,271,825,505.36/236,785.89
  6. Step 6: Final answer
    x = 178,523.41

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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.