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Finding the Fourth Proportional to 169,129.37, 253,786.94 and 98,138.81

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Solution

The fourth proportional to 169,129.37, 253,786.94 and 98,138.81 is: 147,262.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,129.37 : 253,786.94 = 98,138.81 : x
  2. Step 2: Convert to fraction form
    169,129.37/253,786.94 = 98,138.81/x
  3. Step 3: Cross multiply
    169,129.37x = 253,786.94 × 98,138.81
  4. Step 4: Simplify right side
    169,129.37x = 24,906,348,285.14
  5. Step 5: Solve for x
    x = 24,906,348,285.14/169,129.37
  6. Step 6: Final answer
    x = 147,262.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.