Home / 103,819.32-155,711.97-28,944.54

Finding the Fourth Proportional to 103,819.32, 155,711.97 and 28,944.54

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Solution

The fourth proportional to 103,819.32, 155,711.97 and 28,944.54 is: 43,412.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,819.32 : 155,711.97 = 28,944.54 : x
  2. Step 2: Convert to fraction form
    103,819.32/155,711.97 = 28,944.54/x
  3. Step 3: Cross multiply
    103,819.32x = 155,711.97 × 28,944.54
  4. Step 4: Simplify right side
    103,819.32x = 4,507,011,344.14
  5. Step 5: Solve for x
    x = 4,507,011,344.14/103,819.32
  6. Step 6: Final answer
    x = 43,412.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.