Home / 102,788.80-154,193.78-38,800.84

Finding the Fourth Proportional to 102,788.80, 154,193.78 and 38,800.84

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Solution

The fourth proportional to 102,788.80, 154,193.78 and 38,800.84 is: 58,205.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,788.80 : 154,193.78 = 38,800.84 : x
  2. Step 2: Convert to fraction form
    102,788.80/154,193.78 = 38,800.84/x
  3. Step 3: Cross multiply
    102,788.80x = 154,193.78 × 38,800.84
  4. Step 4: Simplify right side
    102,788.80x = 5,982,847,969.15
  5. Step 5: Solve for x
    x = 5,982,847,969.15/102,788.80
  6. Step 6: Final answer
    x = 58,205.25

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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.