Home / 103,239.88-142,514.58-69,751.24

Finding the Fourth Proportional to 103,239.88, 142,514.58 and 69,751.24

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Solution

The fourth proportional to 103,239.88, 142,514.58 and 69,751.24 is: 96,286.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,239.88 : 142,514.58 = 69,751.24 : x
  2. Step 2: Convert to fraction form
    103,239.88/142,514.58 = 69,751.24/x
  3. Step 3: Cross multiply
    103,239.88x = 142,514.58 × 69,751.24
  4. Step 4: Simplify right side
    103,239.88x = 9,940,568,673.08
  5. Step 5: Solve for x
    x = 9,940,568,673.08/103,239.88
  6. Step 6: Final answer
    x = 96,286.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.