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Finding the Fourth Proportional to 171,651.96, 236,900.70 and 107,988.39

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Solution

The fourth proportional to 171,651.96, 236,900.70 and 107,988.39 is: 149,037.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,651.96 : 236,900.70 = 107,988.39 : x
  2. Step 2: Convert to fraction form
    171,651.96/236,900.70 = 107,988.39/x
  3. Step 3: Cross multiply
    171,651.96x = 236,900.70 × 107,988.39
  4. Step 4: Simplify right side
    171,651.96x = 25,582,525,182.87
  5. Step 5: Solve for x
    x = 25,582,525,182.87/171,651.96
  6. Step 6: Final answer
    x = 149,037.19

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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.