Home / 102,928.97-154,377.68-28,055.14

Finding the Fourth Proportional to 102,928.97, 154,377.68 and 28,055.14

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Solution

The fourth proportional to 102,928.97, 154,377.68 and 28,055.14 is: 42,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,928.97 : 154,377.68 = 28,055.14 : x
  2. Step 2: Convert to fraction form
    102,928.97/154,377.68 = 28,055.14/x
  3. Step 3: Cross multiply
    102,928.97x = 154,377.68 × 28,055.14
  4. Step 4: Simplify right side
    102,928.97x = 4,331,086,899.06
  5. Step 5: Solve for x
    x = 4,331,086,899.06/102,928.97
  6. Step 6: Final answer
    x = 42,078.40

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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.