Home / 143,315.25-197,773.61-79,651.68

Finding the Fourth Proportional to 143,315.25, 197,773.61 and 79,651.68

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Solution

The fourth proportional to 143,315.25, 197,773.61 and 79,651.68 is: 109,918.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,315.25 : 197,773.61 = 79,651.68 : x
  2. Step 2: Convert to fraction form
    143,315.25/197,773.61 = 79,651.68/x
  3. Step 3: Cross multiply
    143,315.25x = 197,773.61 × 79,651.68
  4. Step 4: Simplify right side
    143,315.25x = 15,753,000,296.16
  5. Step 5: Solve for x
    x = 15,753,000,296.16/143,315.25
  6. Step 6: Final answer
    x = 109,918.52

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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.