Home / 160,388.96-221,328.88-91,481.15

Finding the Fourth Proportional to 160,388.96, 221,328.88 and 91,481.15

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Solution

The fourth proportional to 160,388.96, 221,328.88 and 91,481.15 is: 126,239.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,388.96 : 221,328.88 = 91,481.15 : x
  2. Step 2: Convert to fraction form
    160,388.96/221,328.88 = 91,481.15/x
  3. Step 3: Cross multiply
    160,388.96x = 221,328.88 × 91,481.15
  4. Step 4: Simplify right side
    160,388.96x = 20,247,420,795.23
  5. Step 5: Solve for x
    x = 20,247,420,795.23/160,388.96
  6. Step 6: Final answer
    x = 126,239.49

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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.