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Finding the Fourth Proportional to 236,099.68, 325,817.98 and 128,669.67

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Solution

The fourth proportional to 236,099.68, 325,817.98 and 128,669.67 is: 177,564.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,099.68 : 325,817.98 = 128,669.67 : x
  2. Step 2: Convert to fraction form
    236,099.68/325,817.98 = 128,669.67/x
  3. Step 3: Cross multiply
    236,099.68x = 325,817.98 × 128,669.67
  4. Step 4: Simplify right side
    236,099.68x = 41,922,891,644.99
  5. Step 5: Solve for x
    x = 41,922,891,644.99/236,099.68
  6. Step 6: Final answer
    x = 177,564.37

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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.