Home / 159,769.46-220,501.38-91,786.31

Finding the Fourth Proportional to 159,769.46, 220,501.38 and 91,786.31

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Solution

The fourth proportional to 159,769.46, 220,501.38 and 91,786.31 is: 126,676.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,769.46 : 220,501.38 = 91,786.31 : x
  2. Step 2: Convert to fraction form
    159,769.46/220,501.38 = 91,786.31/x
  3. Step 3: Cross multiply
    159,769.46x = 220,501.38 × 91,786.31
  4. Step 4: Simplify right side
    159,769.46x = 20,239,008,088.68
  5. Step 5: Solve for x
    x = 20,239,008,088.68/159,769.46
  6. Step 6: Final answer
    x = 126,676.32

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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.