Home / 102,930.97-154,380.67-28,057.14

Finding the Fourth Proportional to 102,930.97, 154,380.67 and 28,057.14

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Solution

The fourth proportional to 102,930.97, 154,380.67 and 28,057.14 is: 42,081.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,930.97 : 154,380.67 = 28,057.14 : x
  2. Step 2: Convert to fraction form
    102,930.97/154,380.67 = 28,057.14/x
  3. Step 3: Cross multiply
    102,930.97x = 154,380.67 × 28,057.14
  4. Step 4: Simplify right side
    102,930.97x = 4,331,480,071.48
  5. Step 5: Solve for x
    x = 4,331,480,071.48/102,930.97
  6. Step 6: Final answer
    x = 42,081.41

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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.