Home / 103,544.28-155,308.06-28,665.80

Finding the Fourth Proportional to 103,544.28, 155,308.06 and 28,665.80

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Solution

The fourth proportional to 103,544.28, 155,308.06 and 28,665.80 is: 42,996.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,544.28 : 155,308.06 = 28,665.80 : x
  2. Step 2: Convert to fraction form
    103,544.28/155,308.06 = 28,665.80/x
  3. Step 3: Cross multiply
    103,544.28x = 155,308.06 × 28,665.80
  4. Step 4: Simplify right side
    103,544.28x = 4,452,029,786.35
  5. Step 5: Solve for x
    x = 4,452,029,786.35/103,544.28
  6. Step 6: Final answer
    x = 42,996.39

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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.