Home / 426,616.53-639,963.07-111,076.17

Finding the Fourth Proportional to 426,616.53, 639,963.07 and 111,076.17

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Solution

The fourth proportional to 426,616.53, 639,963.07 and 111,076.17 is: 166,624.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,616.53 : 639,963.07 = 111,076.17 : x
  2. Step 2: Convert to fraction form
    426,616.53/639,963.07 = 111,076.17/x
  3. Step 3: Cross multiply
    426,616.53x = 639,963.07 × 111,076.17
  4. Step 4: Simplify right side
    426,616.53x = 71,084,646,757.04
  5. Step 5: Solve for x
    x = 71,084,646,757.04/426,616.53
  6. Step 6: Final answer
    x = 166,624.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.