Home / 139,677.35-192,751.04-76,013.78

Finding the Fourth Proportional to 139,677.35, 192,751.04 and 76,013.78

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Solution

The fourth proportional to 139,677.35, 192,751.04 and 76,013.78 is: 104,897.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,677.35 : 192,751.04 = 76,013.78 : x
  2. Step 2: Convert to fraction form
    139,677.35/192,751.04 = 76,013.78/x
  3. Step 3: Cross multiply
    139,677.35x = 192,751.04 × 76,013.78
  4. Step 4: Simplify right side
    139,677.35x = 14,651,734,375.61
  5. Step 5: Solve for x
    x = 14,651,734,375.61/139,677.35
  6. Step 6: Final answer
    x = 104,897.00

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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.