Home / 139,734.18-192,833.19-76,071.96

Finding the Fourth Proportional to 139,734.18, 192,833.19 and 76,071.96

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Solution

The fourth proportional to 139,734.18, 192,833.19 and 76,071.96 is: 104,979.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,734.18 : 192,833.19 = 76,071.96 : x
  2. Step 2: Convert to fraction form
    139,734.18/192,833.19 = 76,071.96/x
  3. Step 3: Cross multiply
    139,734.18x = 192,833.19 × 76,071.96
  4. Step 4: Simplify right side
    139,734.18x = 14,669,198,716.35
  5. Step 5: Solve for x
    x = 14,669,198,716.35/139,734.18
  6. Step 6: Final answer
    x = 104,979.32

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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.