Home / 103,619.96-155,429.92-68,551.41

Finding the Fourth Proportional to 103,619.96, 155,429.92 and 68,551.41

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Solution

The fourth proportional to 103,619.96, 155,429.92 and 68,551.41 is: 102,827.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,619.96 : 155,429.92 = 68,551.41 : x
  2. Step 2: Convert to fraction form
    103,619.96/155,429.92 = 68,551.41/x
  3. Step 3: Cross multiply
    103,619.96x = 155,429.92 × 68,551.41
  4. Step 4: Simplify right side
    103,619.96x = 10,654,940,172.19
  5. Step 5: Solve for x
    x = 10,654,940,172.19/103,619.96
  6. Step 6: Final answer
    x = 102,827.10

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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.