Home / 116,867.12-161,309.64-69,137.04

Finding the Fourth Proportional to 116,867.12, 161,309.64 and 69,137.04

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Solution

The fourth proportional to 116,867.12, 161,309.64 and 69,137.04 is: 95,428.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,867.12 : 161,309.64 = 69,137.04 : x
  2. Step 2: Convert to fraction form
    116,867.12/161,309.64 = 69,137.04/x
  3. Step 3: Cross multiply
    116,867.12x = 161,309.64 × 69,137.04
  4. Step 4: Simplify right side
    116,867.12x = 11,152,471,033.07
  5. Step 5: Solve for x
    x = 11,152,471,033.07/116,867.12
  6. Step 6: Final answer
    x = 95,428.65

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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.