Home / 103,693.22-155,539.74-28,813.33

Finding the Fourth Proportional to 103,693.22, 155,539.74 and 28,813.33

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Solution

The fourth proportional to 103,693.22, 155,539.74 and 28,813.33 is: 43,219.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,693.22 : 155,539.74 = 28,813.33 : x
  2. Step 2: Convert to fraction form
    103,693.22/155,539.74 = 28,813.33/x
  3. Step 3: Cross multiply
    103,693.22x = 155,539.74 × 28,813.33
  4. Step 4: Simplify right side
    103,693.22x = 4,481,617,928.77
  5. Step 5: Solve for x
    x = 4,481,617,928.77/103,693.22
  6. Step 6: Final answer
    x = 43,219.97

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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.