Home / 103,615.35-155,407.57-28,727.68

Finding the Fourth Proportional to 103,615.35, 155,407.57 and 28,727.68

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Solution

The fourth proportional to 103,615.35, 155,407.57 and 28,727.68 is: 43,087.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,615.35 : 155,407.57 = 28,727.68 : x
  2. Step 2: Convert to fraction form
    103,615.35/155,407.57 = 28,727.68/x
  3. Step 3: Cross multiply
    103,615.35x = 155,407.57 × 28,727.68
  4. Step 4: Simplify right side
    103,615.35x = 4,464,498,940.54
  5. Step 5: Solve for x
    x = 4,464,498,940.54/103,615.35
  6. Step 6: Final answer
    x = 43,087.24

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1.5x scale

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.