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Finding the Fourth Proportional to 168,634.70, 252,995.79 and 89,684

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Solution

The fourth proportional to 168,634.70, 252,995.79 and 89,684 is: 134,549.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,634.70 : 252,995.79 = 89,684 : x
  2. Step 2: Convert to fraction form
    168,634.70/252,995.79 = 89,684/x
  3. Step 3: Cross multiply
    168,634.70x = 252,995.79 × 89,684
  4. Step 4: Simplify right side
    168,634.70x = 22,689,674,430.36
  5. Step 5: Solve for x
    x = 22,689,674,430.36/168,634.70
  6. Step 6: Final answer
    x = 134,549.26

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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.