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Finding the Fourth Proportional to 103,662.98, 143,099.04 and 69,691.17

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Solution

The fourth proportional to 103,662.98, 143,099.04 and 69,691.17 is: 96,203.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,662.98 : 143,099.04 = 69,691.17 : x
  2. Step 2: Convert to fraction form
    103,662.98/143,099.04 = 69,691.17/x
  3. Step 3: Cross multiply
    103,662.98x = 143,099.04 × 69,691.17
  4. Step 4: Simplify right side
    103,662.98x = 9,972,740,022.20
  5. Step 5: Solve for x
    x = 9,972,740,022.20/103,662.98
  6. Step 6: Final answer
    x = 96,203.49

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1.5x scale

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.