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Finding the Fourth Proportional to 103,251.92, 154,852.36 and 28,368.43

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Solution

The fourth proportional to 103,251.92, 154,852.36 and 28,368.43 is: 42,545.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,251.92 : 154,852.36 = 28,368.43 : x
  2. Step 2: Convert to fraction form
    103,251.92/154,852.36 = 28,368.43/x
  3. Step 3: Cross multiply
    103,251.92x = 154,852.36 × 28,368.43
  4. Step 4: Simplify right side
    103,251.92x = 4,392,917,876.94
  5. Step 5: Solve for x
    x = 4,392,917,876.94/103,251.92
  6. Step 6: Final answer
    x = 42,545.63

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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.