Home / 143,284.91-197,725.95-79,621.34

Finding the Fourth Proportional to 143,284.91, 197,725.95 and 79,621.34

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Solution

The fourth proportional to 143,284.91, 197,725.95 and 79,621.34 is: 109,873.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,284.91 : 197,725.95 = 79,621.34 : x
  2. Step 2: Convert to fraction form
    143,284.91/197,725.95 = 79,621.34/x
  3. Step 3: Cross multiply
    143,284.91x = 197,725.95 × 79,621.34
  4. Step 4: Simplify right side
    143,284.91x = 15,743,204,844.62
  5. Step 5: Solve for x
    x = 15,743,204,844.62/143,284.91
  6. Step 6: Final answer
    x = 109,873.43

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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.