Home / 143,212.84-197,633.62-79,556.56

Finding the Fourth Proportional to 143,212.84, 197,633.62 and 79,556.56

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Solution

The fourth proportional to 143,212.84, 197,633.62 and 79,556.56 is: 109,788.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,212.84 : 197,633.62 = 79,556.56 : x
  2. Step 2: Convert to fraction form
    143,212.84/197,633.62 = 79,556.56/x
  3. Step 3: Cross multiply
    143,212.84x = 197,633.62 × 79,556.56
  4. Step 4: Simplify right side
    143,212.84x = 15,723,050,947.55
  5. Step 5: Solve for x
    x = 15,723,050,947.55/143,212.84
  6. Step 6: Final answer
    x = 109,788.00

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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.