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Finding the Fourth Proportional to 103,353.94, 154,760.25 and 67,703.11

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Solution

The fourth proportional to 103,353.94, 154,760.25 and 67,703.11 is: 101,377.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,353.94 : 154,760.25 = 67,703.11 : x
  2. Step 2: Convert to fraction form
    103,353.94/154,760.25 = 67,703.11/x
  3. Step 3: Cross multiply
    103,353.94x = 154,760.25 × 67,703.11
  4. Step 4: Simplify right side
    103,353.94x = 10,477,750,229.38
  5. Step 5: Solve for x
    x = 10,477,750,229.38/103,353.94
  6. Step 6: Final answer
    x = 101,377.37

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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.