Home / 143,226.87-197,646.38-79,568.55

Finding the Fourth Proportional to 143,226.87, 197,646.38 and 79,568.55

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Solution

The fourth proportional to 143,226.87, 197,646.38 and 79,568.55 is: 109,800.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,226.87 : 197,646.38 = 79,568.55 : x
  2. Step 2: Convert to fraction form
    143,226.87/197,646.38 = 79,568.55/x
  3. Step 3: Cross multiply
    143,226.87x = 197,646.38 × 79,568.55
  4. Step 4: Simplify right side
    143,226.87x = 15,726,435,471.51
  5. Step 5: Solve for x
    x = 15,726,435,471.51/143,226.87
  6. Step 6: Final answer
    x = 109,800.87

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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.