Home / 116,919.24-161,352.18-66,615

Finding the Fourth Proportional to 116,919.24, 161,352.18 and 66,615

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Solution

The fourth proportional to 116,919.24, 161,352.18 and 66,615 is: 91,930.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,919.24 : 161,352.18 = 66,615 : x
  2. Step 2: Convert to fraction form
    116,919.24/161,352.18 = 66,615/x
  3. Step 3: Cross multiply
    116,919.24x = 161,352.18 × 66,615
  4. Step 4: Simplify right side
    116,919.24x = 10,748,475,470.70
  5. Step 5: Solve for x
    x = 10,748,475,470.70/116,919.24
  6. Step 6: Final answer
    x = 91,930.77

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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.