Home / 116,941.63-161,453.24-81,119.11

Finding the Fourth Proportional to 116,941.63, 161,453.24 and 81,119.11

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Solution

The fourth proportional to 116,941.63, 161,453.24 and 81,119.11 is: 111,995.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,941.63 : 161,453.24 = 81,119.11 : x
  2. Step 2: Convert to fraction form
    116,941.63/161,453.24 = 81,119.11/x
  3. Step 3: Cross multiply
    116,941.63x = 161,453.24 × 81,119.11
  4. Step 4: Simplify right side
    116,941.63x = 13,096,943,135.42
  5. Step 5: Solve for x
    x = 13,096,943,135.42/116,941.63
  6. Step 6: Final answer
    x = 111,995.56

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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.