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Finding the Fourth Proportional to 225,081.57, 310,610.05 and 123,109.96

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Solution

The fourth proportional to 225,081.57, 310,610.05 and 123,109.96 is: 169,890.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,081.57 : 310,610.05 = 123,109.96 : x
  2. Step 2: Convert to fraction form
    225,081.57/310,610.05 = 123,109.96/x
  3. Step 3: Cross multiply
    225,081.57x = 310,610.05 × 123,109.96
  4. Step 4: Simplify right side
    225,081.57x = 38,239,190,831.10
  5. Step 5: Solve for x
    x = 38,239,190,831.10/225,081.57
  6. Step 6: Final answer
    x = 169,890.37

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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.