Home / 143,151.91-197,578.65-82,725.10

Finding the Fourth Proportional to 143,151.91, 197,578.65 and 82,725.10

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Solution

The fourth proportional to 143,151.91, 197,578.65 and 82,725.10 is: 114,177.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,151.91 : 197,578.65 = 82,725.10 : x
  2. Step 2: Convert to fraction form
    143,151.91/197,578.65 = 82,725.10/x
  3. Step 3: Cross multiply
    143,151.91x = 197,578.65 × 82,725.10
  4. Step 4: Simplify right side
    143,151.91x = 16,344,713,579.12
  5. Step 5: Solve for x
    x = 16,344,713,579.12/143,151.91
  6. Step 6: Final answer
    x = 114,177.40

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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.