Home / 199,971.18-300,067.49-119,812.16

Finding the Fourth Proportional to 199,971.18, 300,067.49 and 119,812.16

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Solution

The fourth proportional to 199,971.18, 300,067.49 and 119,812.16 is: 179,784.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,971.18 : 300,067.49 = 119,812.16 : x
  2. Step 2: Convert to fraction form
    199,971.18/300,067.49 = 119,812.16/x
  3. Step 3: Cross multiply
    199,971.18x = 300,067.49 × 119,812.16
  4. Step 4: Simplify right side
    199,971.18x = 35,951,732,023.28
  5. Step 5: Solve for x
    x = 35,951,732,023.28/199,971.18
  6. Step 6: Final answer
    x = 179,784.57

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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.