Home / 68,102.33-102,154.23-20,725.11

Finding the Fourth Proportional to 68,102.33, 102,154.23 and 20,725.11

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Solution

The fourth proportional to 68,102.33, 102,154.23 and 20,725.11 is: 31,087.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,102.33 : 102,154.23 = 20,725.11 : x
  2. Step 2: Convert to fraction form
    68,102.33/102,154.23 = 20,725.11/x
  3. Step 3: Cross multiply
    68,102.33x = 102,154.23 × 20,725.11
  4. Step 4: Simplify right side
    68,102.33x = 2,117,157,653.72
  5. Step 5: Solve for x
    x = 2,117,157,653.72/68,102.33
  6. Step 6: Final answer
    x = 31,087.89

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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.