Home / 102,906.48-154,357.92-28,025.40

Finding the Fourth Proportional to 102,906.48, 154,357.92 and 28,025.40

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Solution

The fourth proportional to 102,906.48, 154,357.92 and 28,025.40 is: 42,037.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,906.48 : 154,357.92 = 28,025.40 : x
  2. Step 2: Convert to fraction form
    102,906.48/154,357.92 = 28,025.40/x
  3. Step 3: Cross multiply
    102,906.48x = 154,357.92 × 28,025.40
  4. Step 4: Simplify right side
    102,906.48x = 4,325,942,451.17
  5. Step 5: Solve for x
    x = 4,325,942,451.17/102,906.48
  6. Step 6: Final answer
    x = 42,037.61

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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.