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Finding the Fourth Proportional to 168,633.70, 252,994.29 and 89,683

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Solution

The fourth proportional to 168,633.70, 252,994.29 and 89,683 is: 134,547.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,633.70 : 252,994.29 = 89,683 : x
  2. Step 2: Convert to fraction form
    168,633.70/252,994.29 = 89,683/x
  3. Step 3: Cross multiply
    168,633.70x = 252,994.29 × 89,683
  4. Step 4: Simplify right side
    168,633.70x = 22,689,286,910.07
  5. Step 5: Solve for x
    x = 22,689,286,910.07/168,633.70
  6. Step 6: Final answer
    x = 134,547.76

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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.