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Finding the Fourth Proportional to 171,497.77, 257,246.66 and 71,603.58

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Solution

The fourth proportional to 171,497.77, 257,246.66 and 71,603.58 is: 107,405.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,497.77 : 257,246.66 = 71,603.58 : x
  2. Step 2: Convert to fraction form
    171,497.77/257,246.66 = 71,603.58/x
  3. Step 3: Cross multiply
    171,497.77x = 257,246.66 × 71,603.58
  4. Step 4: Simplify right side
    171,497.77x = 18,419,781,799.04
  5. Step 5: Solve for x
    x = 18,419,781,799.04/171,497.77
  6. Step 6: Final answer
    x = 107,405.37

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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.