Home / 143,314.25-197,772.23-79,650.68

Finding the Fourth Proportional to 143,314.25, 197,772.23 and 79,650.68

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Solution

The fourth proportional to 143,314.25, 197,772.23 and 79,650.68 is: 109,917.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,314.25 : 197,772.23 = 79,650.68 : x
  2. Step 2: Convert to fraction form
    143,314.25/197,772.23 = 79,650.68/x
  3. Step 3: Cross multiply
    143,314.25x = 197,772.23 × 79,650.68
  4. Step 4: Simplify right side
    143,314.25x = 15,752,691,814.88
  5. Step 5: Solve for x
    x = 15,752,691,814.88/143,314.25
  6. Step 6: Final answer
    x = 109,917.14

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1.5x scale

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.