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Finding the Fourth Proportional to 128,568.10, 192,524.10 and 102,324.10

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Solution

The fourth proportional to 128,568.10, 192,524.10 and 102,324.10 is: 153,225.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,568.10 : 192,524.10 = 102,324.10 : x
  2. Step 2: Convert to fraction form
    128,568.10/192,524.10 = 102,324.10/x
  3. Step 3: Cross multiply
    128,568.10x = 192,524.10 × 102,324.10
  4. Step 4: Simplify right side
    128,568.10x = 19,699,855,260.81
  5. Step 5: Solve for x
    x = 19,699,855,260.81/128,568.10
  6. Step 6: Final answer
    x = 153,225.06

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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.