Home / 103,660.44-155,473.31-28,788.15

Finding the Fourth Proportional to 103,660.44, 155,473.31 and 28,788.15

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Solution

The fourth proportional to 103,660.44, 155,473.31 and 28,788.15 is: 43,177.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,660.44 : 155,473.31 = 28,788.15 : x
  2. Step 2: Convert to fraction form
    103,660.44/155,473.31 = 28,788.15/x
  3. Step 3: Cross multiply
    103,660.44x = 155,473.31 × 28,788.15
  4. Step 4: Simplify right side
    103,660.44x = 4,475,788,969.28
  5. Step 5: Solve for x
    x = 4,475,788,969.28/103,660.44
  6. Step 6: Final answer
    x = 43,177.41

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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.