Home / 107,786.74-147,668.53-103,746.43

Finding the Fourth Proportional to 107,786.74, 147,668.53 and 103,746.43

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Solution

The fourth proportional to 107,786.74, 147,668.53 and 103,746.43 is: 142,133.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,786.74 : 147,668.53 = 103,746.43 : x
  2. Step 2: Convert to fraction form
    107,786.74/147,668.53 = 103,746.43/x
  3. Step 3: Cross multiply
    107,786.74x = 147,668.53 × 103,746.43
  4. Step 4: Simplify right side
    107,786.74x = 15,320,083,284.14
  5. Step 5: Solve for x
    x = 15,320,083,284.14/107,786.74
  6. Step 6: Final answer
    x = 142,133.29

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.