Home / 103,829.24-143,346.59-68,081.60

Finding the Fourth Proportional to 103,829.24, 143,346.59 and 68,081.60

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Solution

The fourth proportional to 103,829.24, 143,346.59 and 68,081.60 is: 93,993.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,829.24 : 143,346.59 = 68,081.60 : x
  2. Step 2: Convert to fraction form
    103,829.24/143,346.59 = 68,081.60/x
  3. Step 3: Cross multiply
    103,829.24x = 143,346.59 × 68,081.60
  4. Step 4: Simplify right side
    103,829.24x = 9,759,265,201.74
  5. Step 5: Solve for x
    x = 9,759,265,201.74/103,829.24
  6. Step 6: Final answer
    x = 93,993.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.