Home / 159,621.03-220,267.96-91,623.56

Finding the Fourth Proportional to 159,621.03, 220,267.96 and 91,623.56

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Solution

The fourth proportional to 159,621.03, 220,267.96 and 91,623.56 is: 126,435.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,621.03 : 220,267.96 = 91,623.56 : x
  2. Step 2: Convert to fraction form
    159,621.03/220,267.96 = 91,623.56/x
  3. Step 3: Cross multiply
    159,621.03x = 220,267.96 × 91,623.56
  4. Step 4: Simplify right side
    159,621.03x = 20,181,733,318.74
  5. Step 5: Solve for x
    x = 20,181,733,318.74/159,621.03
  6. Step 6: Final answer
    x = 126,435.30

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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.