Home / 143,477.46-197,975.61-79,813.62

Finding the Fourth Proportional to 143,477.46, 197,975.61 and 79,813.62

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Solution

The fourth proportional to 143,477.46, 197,975.61 and 79,813.62 is: 110,129.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,477.46 : 197,975.61 = 79,813.62 : x
  2. Step 2: Convert to fraction form
    143,477.46/197,975.61 = 79,813.62/x
  3. Step 3: Cross multiply
    143,477.46x = 197,975.61 × 79,813.62
  4. Step 4: Simplify right side
    143,477.46x = 15,801,150,105.81
  5. Step 5: Solve for x
    x = 15,801,150,105.81/143,477.46
  6. Step 6: Final answer
    x = 110,129.84

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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.