Home / 117,857.24-162,660.13-66,180.14

Finding the Fourth Proportional to 117,857.24, 162,660.13 and 66,180.14

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Solution

The fourth proportional to 117,857.24, 162,660.13 and 66,180.14 is: 91,338.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,857.24 : 162,660.13 = 66,180.14 : x
  2. Step 2: Convert to fraction form
    117,857.24/162,660.13 = 66,180.14/x
  3. Step 3: Cross multiply
    117,857.24x = 162,660.13 × 66,180.14
  4. Step 4: Simplify right side
    117,857.24x = 10,764,869,769.17
  5. Step 5: Solve for x
    x = 10,764,869,769.17/117,857.24
  6. Step 6: Final answer
    x = 91,338.21

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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.