Home / 143,226.37-197,645.68-79,568.05

Finding the Fourth Proportional to 143,226.37, 197,645.68 and 79,568.05

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Solution

The fourth proportional to 143,226.37, 197,645.68 and 79,568.05 is: 109,800.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,226.37 : 197,645.68 = 79,568.05 : x
  2. Step 2: Convert to fraction form
    143,226.37/197,645.68 = 79,568.05/x
  3. Step 3: Cross multiply
    143,226.37x = 197,645.68 × 79,568.05
  4. Step 4: Simplify right side
    143,226.37x = 15,726,281,348.52
  5. Step 5: Solve for x
    x = 15,726,281,348.52/143,226.37
  6. Step 6: Final answer
    x = 109,800.18

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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.