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Finding the Fourth Proportional to 163,286.96, 245,021.16 and 88,406

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Solution

The fourth proportional to 163,286.96, 245,021.16 and 88,406 is: 132,658.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,286.96 : 245,021.16 = 88,406 : x
  2. Step 2: Convert to fraction form
    163,286.96/245,021.16 = 88,406/x
  3. Step 3: Cross multiply
    163,286.96x = 245,021.16 × 88,406
  4. Step 4: Simplify right side
    163,286.96x = 21,661,340,670.96
  5. Step 5: Solve for x
    x = 21,661,340,670.96/163,286.96
  6. Step 6: Final answer
    x = 132,658.12

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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.