Home / 278,129.03-417,209.69-107,351.69

Finding the Fourth Proportional to 278,129.03, 417,209.69 and 107,351.69

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Solution

The fourth proportional to 278,129.03, 417,209.69 and 107,351.69 is: 161,033.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,129.03 : 417,209.69 = 107,351.69 : x
  2. Step 2: Convert to fraction form
    278,129.03/417,209.69 = 107,351.69/x
  3. Step 3: Cross multiply
    278,129.03x = 417,209.69 × 107,351.69
  4. Step 4: Simplify right side
    278,129.03x = 44,788,162,683.07
  5. Step 5: Solve for x
    x = 44,788,162,683.07/278,129.03
  6. Step 6: Final answer
    x = 161,033.76

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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.