Home / 103,517.22-155,121.93-53,530.60

Finding the Fourth Proportional to 103,517.22, 155,121.93 and 53,530.60

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Solution

The fourth proportional to 103,517.22, 155,121.93 and 53,530.60 is: 80,216.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,517.22 : 155,121.93 = 53,530.60 : x
  2. Step 2: Convert to fraction form
    103,517.22/155,121.93 = 53,530.60/x
  3. Step 3: Cross multiply
    103,517.22x = 155,121.93 × 53,530.60
  4. Step 4: Simplify right side
    103,517.22x = 8,303,769,986.06
  5. Step 5: Solve for x
    x = 8,303,769,986.06/103,517.22
  6. Step 6: Final answer
    x = 80,216.32

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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.