Home / 119,749.87-165,251.03-66,037.15

Finding the Fourth Proportional to 119,749.87, 165,251.03 and 66,037.15

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Solution

The fourth proportional to 119,749.87, 165,251.03 and 66,037.15 is: 91,129.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,749.87 : 165,251.03 = 66,037.15 : x
  2. Step 2: Convert to fraction form
    119,749.87/165,251.03 = 66,037.15/x
  3. Step 3: Cross multiply
    119,749.87x = 165,251.03 × 66,037.15
  4. Step 4: Simplify right side
    119,749.87x = 10,912,707,055.76
  5. Step 5: Solve for x
    x = 10,912,707,055.76/119,749.87
  6. Step 6: Final answer
    x = 91,129.18

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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.