Home / 143,125.45-197,519.29-79,463.25

Finding the Fourth Proportional to 143,125.45, 197,519.29 and 79,463.25

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Solution

The fourth proportional to 143,125.45, 197,519.29 and 79,463.25 is: 109,662.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,125.45 : 197,519.29 = 79,463.25 : x
  2. Step 2: Convert to fraction form
    143,125.45/197,519.29 = 79,463.25/x
  3. Step 3: Cross multiply
    143,125.45x = 197,519.29 × 79,463.25
  4. Step 4: Simplify right side
    143,125.45x = 15,695,524,522.43
  5. Step 5: Solve for x
    x = 15,695,524,522.43/143,125.45
  6. Step 6: Final answer
    x = 109,662.71

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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.