Home / 234,212.66-351,352.18-72,120.05

Finding the Fourth Proportional to 234,212.66, 351,352.18 and 72,120.05

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Solution

The fourth proportional to 234,212.66, 351,352.18 and 72,120.05 is: 108,190.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,212.66 : 351,352.18 = 72,120.05 : x
  2. Step 2: Convert to fraction form
    234,212.66/351,352.18 = 72,120.05/x
  3. Step 3: Cross multiply
    234,212.66x = 351,352.18 × 72,120.05
  4. Step 4: Simplify right side
    234,212.66x = 25,339,535,451.99
  5. Step 5: Solve for x
    x = 25,339,535,451.99/234,212.66
  6. Step 6: Final answer
    x = 108,190.29

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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.