Home / 159,769.34-220,501.21-91,786.18

Finding the Fourth Proportional to 159,769.34, 220,501.21 and 91,786.18

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Solution

The fourth proportional to 159,769.34, 220,501.21 and 91,786.18 is: 126,676.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,769.34 : 220,501.21 = 91,786.18 : x
  2. Step 2: Convert to fraction form
    159,769.34/220,501.21 = 91,786.18/x
  3. Step 3: Cross multiply
    159,769.34x = 220,501.21 × 91,786.18
  4. Step 4: Simplify right side
    159,769.34x = 20,238,963,751.28
  5. Step 5: Solve for x
    x = 20,238,963,751.28/159,769.34
  6. Step 6: Final answer
    x = 126,676.14

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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.