Home / 116,944.36-161,382.90-66,643.72

Finding the Fourth Proportional to 116,944.36, 161,382.90 and 66,643.72

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Solution

The fourth proportional to 116,944.36, 161,382.90 and 66,643.72 is: 91,968.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,944.36 : 161,382.90 = 66,643.72 : x
  2. Step 2: Convert to fraction form
    116,944.36/161,382.90 = 66,643.72/x
  3. Step 3: Cross multiply
    116,944.36x = 161,382.90 × 66,643.72
  4. Step 4: Simplify right side
    116,944.36x = 10,755,156,800.39
  5. Step 5: Solve for x
    x = 10,755,156,800.39/116,944.36
  6. Step 6: Final answer
    x = 91,968.15

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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.