Home / 102,084.30-140,884.20-61,249.95

Finding the Fourth Proportional to 102,084.30, 140,884.20 and 61,249.95

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Solution

The fourth proportional to 102,084.30, 140,884.20 and 61,249.95 is: 84,529.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,084.30 : 140,884.20 = 61,249.95 : x
  2. Step 2: Convert to fraction form
    102,084.30/140,884.20 = 61,249.95/x
  3. Step 3: Cross multiply
    102,084.30x = 140,884.20 × 61,249.95
  4. Step 4: Simplify right side
    102,084.30x = 8,629,150,205.79
  5. Step 5: Solve for x
    x = 8,629,150,205.79/102,084.30
  6. Step 6: Final answer
    x = 84,529.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.