Home / 109,680.66-151,362.81-67,282.02

Finding the Fourth Proportional to 109,680.66, 151,362.81 and 67,282.02

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Solution

The fourth proportional to 109,680.66, 151,362.81 and 67,282.02 is: 92,851.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,680.66 : 151,362.81 = 67,282.02 : x
  2. Step 2: Convert to fraction form
    109,680.66/151,362.81 = 67,282.02/x
  3. Step 3: Cross multiply
    109,680.66x = 151,362.81 × 67,282.02
  4. Step 4: Simplify right side
    109,680.66x = 10,183,995,609.68
  5. Step 5: Solve for x
    x = 10,183,995,609.68/109,680.66
  6. Step 6: Final answer
    x = 92,851.33

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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.