Home / 143,621.92-198,206.12-79,958.32

Finding the Fourth Proportional to 143,621.92, 198,206.12 and 79,958.32

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Solution

The fourth proportional to 143,621.92, 198,206.12 and 79,958.32 is: 110,346.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,621.92 : 198,206.12 = 79,958.32 : x
  2. Step 2: Convert to fraction form
    143,621.92/198,206.12 = 79,958.32/x
  3. Step 3: Cross multiply
    143,621.92x = 198,206.12 × 79,958.32
  4. Step 4: Simplify right side
    143,621.92x = 15,848,228,368.92
  5. Step 5: Solve for x
    x = 15,848,228,368.92/143,621.92
  6. Step 6: Final answer
    x = 110,346.86

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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.