Home / 143,438.68-197,926.14-79,764.22

Finding the Fourth Proportional to 143,438.68, 197,926.14 and 79,764.22

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Solution

The fourth proportional to 143,438.68, 197,926.14 and 79,764.22 is: 110,063.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,438.68 : 197,926.14 = 79,764.22 : x
  2. Step 2: Convert to fraction form
    143,438.68/197,926.14 = 79,764.22/x
  3. Step 3: Cross multiply
    143,438.68x = 197,926.14 × 79,764.22
  4. Step 4: Simplify right side
    143,438.68x = 15,787,424,174.71
  5. Step 5: Solve for x
    x = 15,787,424,174.71/143,438.68
  6. Step 6: Final answer
    x = 110,063.93

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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.