Home / 119,839.70-165,349.26-73,260.78

Finding the Fourth Proportional to 119,839.70, 165,349.26 and 73,260.78

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Solution

The fourth proportional to 119,839.70, 165,349.26 and 73,260.78 is: 101,081.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,839.70 : 165,349.26 = 73,260.78 : x
  2. Step 2: Convert to fraction form
    119,839.70/165,349.26 = 73,260.78/x
  3. Step 3: Cross multiply
    119,839.70x = 165,349.26 × 73,260.78
  4. Step 4: Simplify right side
    119,839.70x = 12,113,615,760.02
  5. Step 5: Solve for x
    x = 12,113,615,760.02/119,839.70
  6. Step 6: Final answer
    x = 101,081.83

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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.