Home / 143,137.14-197,523.27-79,471.14

Finding the Fourth Proportional to 143,137.14, 197,523.27 and 79,471.14

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Solution

The fourth proportional to 143,137.14, 197,523.27 and 79,471.14 is: 109,666.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,137.14 : 197,523.27 = 79,471.14 : x
  2. Step 2: Convert to fraction form
    143,137.14/197,523.27 = 79,471.14/x
  3. Step 3: Cross multiply
    143,137.14x = 197,523.27 × 79,471.14
  4. Step 4: Simplify right side
    143,137.14x = 15,697,399,443.43
  5. Step 5: Solve for x
    x = 15,697,399,443.43/143,137.14
  6. Step 6: Final answer
    x = 109,666.85

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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.