Home / 103,185.66-142,343.77-67,396.62

Finding the Fourth Proportional to 103,185.66, 142,343.77 and 67,396.62

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Solution

The fourth proportional to 103,185.66, 142,343.77 and 67,396.62 is: 92,973.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,185.66 : 142,343.77 = 67,396.62 : x
  2. Step 2: Convert to fraction form
    103,185.66/142,343.77 = 67,396.62/x
  3. Step 3: Cross multiply
    103,185.66x = 142,343.77 × 67,396.62
  4. Step 4: Simplify right side
    103,185.66x = 9,593,488,976.06
  5. Step 5: Solve for x
    x = 9,593,488,976.06/103,185.66
  6. Step 6: Final answer
    x = 92,973.08

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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.