Home / 119,930.88-165,501.96-65,481.18

Finding the Fourth Proportional to 119,930.88, 165,501.96 and 65,481.18

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Solution

The fourth proportional to 119,930.88, 165,501.96 and 65,481.18 is: 90,362.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,930.88 : 165,501.96 = 65,481.18 : x
  2. Step 2: Convert to fraction form
    119,930.88/165,501.96 = 65,481.18/x
  3. Step 3: Cross multiply
    119,930.88x = 165,501.96 × 65,481.18
  4. Step 4: Simplify right side
    119,930.88x = 10,837,263,633.11
  5. Step 5: Solve for x
    x = 10,837,263,633.11/119,930.88
  6. Step 6: Final answer
    x = 90,362.58

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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.