Home / 143,410.32-197,905.68-79,748.46

Finding the Fourth Proportional to 143,410.32, 197,905.68 and 79,748.46

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Solution

The fourth proportional to 143,410.32, 197,905.68 and 79,748.46 is: 110,052.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,410.32 : 197,905.68 = 79,748.46 : x
  2. Step 2: Convert to fraction form
    143,410.32/197,905.68 = 79,748.46/x
  3. Step 3: Cross multiply
    143,410.32x = 197,905.68 × 79,748.46
  4. Step 4: Simplify right side
    143,410.32x = 15,782,673,205.25
  5. Step 5: Solve for x
    x = 15,782,673,205.25/143,410.32
  6. Step 6: Final answer
    x = 110,052.56

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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.