Home / 103,623.96-155,435.92-68,555.41

Finding the Fourth Proportional to 103,623.96, 155,435.92 and 68,555.41

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Solution

The fourth proportional to 103,623.96, 155,435.92 and 68,555.41 is: 102,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.96 : 155,435.92 = 68,555.41 : x
  2. Step 2: Convert to fraction form
    103,623.96/155,435.92 = 68,555.41/x
  3. Step 3: Cross multiply
    103,623.96x = 155,435.92 × 68,555.41
  4. Step 4: Simplify right side
    103,623.96x = 10,655,973,224.33
  5. Step 5: Solve for x
    x = 10,655,973,224.33/103,623.96
  6. Step 6: Final answer
    x = 102,833.10

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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.