Home / 143,355.39-197,837.19-79,694.25

Finding the Fourth Proportional to 143,355.39, 197,837.19 and 79,694.25

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Solution

The fourth proportional to 143,355.39, 197,837.19 and 79,694.25 is: 109,981.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,355.39 : 197,837.19 = 79,694.25 : x
  2. Step 2: Convert to fraction form
    143,355.39/197,837.19 = 79,694.25/x
  3. Step 3: Cross multiply
    143,355.39x = 197,837.19 × 79,694.25
  4. Step 4: Simplify right side
    143,355.39x = 15,766,486,479.16
  5. Step 5: Solve for x
    x = 15,766,486,479.16/143,355.39
  6. Step 6: Final answer
    x = 109,981.82

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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.