Home / 116,887.21-161,305.09-63,172.10

Finding the Fourth Proportional to 116,887.21, 161,305.09 and 63,172.10

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Solution

The fourth proportional to 116,887.21, 161,305.09 and 63,172.10 is: 87,177.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,887.21 : 161,305.09 = 63,172.10 : x
  2. Step 2: Convert to fraction form
    116,887.21/161,305.09 = 63,172.10/x
  3. Step 3: Cross multiply
    116,887.21x = 161,305.09 × 63,172.10
  4. Step 4: Simplify right side
    116,887.21x = 10,189,981,275.99
  5. Step 5: Solve for x
    x = 10,189,981,275.99/116,887.21
  6. Step 6: Final answer
    x = 87,177.90

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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.