Home / 115,456.46-159,439.96-109,166.45

Finding the Fourth Proportional to 115,456.46, 159,439.96 and 109,166.45

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Solution

The fourth proportional to 115,456.46, 159,439.96 and 109,166.45 is: 150,753.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,456.46 : 159,439.96 = 109,166.45 : x
  2. Step 2: Convert to fraction form
    115,456.46/159,439.96 = 109,166.45/x
  3. Step 3: Cross multiply
    115,456.46x = 159,439.96 × 109,166.45
  4. Step 4: Simplify right side
    115,456.46x = 17,405,493,351.23
  5. Step 5: Solve for x
    x = 17,405,493,351.23/115,456.46
  6. Step 6: Final answer
    x = 150,753.74

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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.