Home / 151,057.66-208,469.76-99,982.39

Finding the Fourth Proportional to 151,057.66, 208,469.76 and 99,982.39

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Solution

The fourth proportional to 151,057.66, 208,469.76 and 99,982.39 is: 137,982.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,057.66 : 208,469.76 = 99,982.39 : x
  2. Step 2: Convert to fraction form
    151,057.66/208,469.76 = 99,982.39/x
  3. Step 3: Cross multiply
    151,057.66x = 208,469.76 × 99,982.39
  4. Step 4: Simplify right side
    151,057.66x = 20,843,304,847.53
  5. Step 5: Solve for x
    x = 20,843,304,847.53/151,057.66
  6. Step 6: Final answer
    x = 137,982.44

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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.