Home / 189,453.75-261,416.37-108,865.68

Finding the Fourth Proportional to 189,453.75, 261,416.37 and 108,865.68

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Solution

The fourth proportional to 189,453.75, 261,416.37 and 108,865.68 is: 150,217.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,453.75 : 261,416.37 = 108,865.68 : x
  2. Step 2: Convert to fraction form
    189,453.75/261,416.37 = 108,865.68/x
  3. Step 3: Cross multiply
    189,453.75x = 261,416.37 × 108,865.68
  4. Step 4: Simplify right side
    189,453.75x = 28,459,270,883.18
  5. Step 5: Solve for x
    x = 28,459,270,883.18/189,453.75
  6. Step 6: Final answer
    x = 150,217.51

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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.