Home / 139,751.38-192,852.30-76,087.72

Finding the Fourth Proportional to 139,751.38, 192,852.30 and 76,087.72

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Solution

The fourth proportional to 139,751.38, 192,852.30 and 76,087.72 is: 104,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,751.38 : 192,852.30 = 76,087.72 : x
  2. Step 2: Convert to fraction form
    139,751.38/192,852.30 = 76,087.72/x
  3. Step 3: Cross multiply
    139,751.38x = 192,852.30 × 76,087.72
  4. Step 4: Simplify right side
    139,751.38x = 14,673,691,803.76
  5. Step 5: Solve for x
    x = 14,673,691,803.76/139,751.38
  6. Step 6: Final answer
    x = 104,998.55

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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.