Home / 107,979.16-149,022.78-60,249.08

Finding the Fourth Proportional to 107,979.16, 149,022.78 and 60,249.08

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Solution

The fourth proportional to 107,979.16, 149,022.78 and 60,249.08 is: 83,150.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,979.16 : 149,022.78 = 60,249.08 : x
  2. Step 2: Convert to fraction form
    107,979.16/149,022.78 = 60,249.08/x
  3. Step 3: Cross multiply
    107,979.16x = 149,022.78 × 60,249.08
  4. Step 4: Simplify right side
    107,979.16x = 8,978,485,394.04
  5. Step 5: Solve for x
    x = 8,978,485,394.04/107,979.16
  6. Step 6: Final answer
    x = 83,150.17

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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.