Home / 139,972.46-193,192.09-82,590.44

Finding the Fourth Proportional to 139,972.46, 193,192.09 and 82,590.44

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Solution

The fourth proportional to 139,972.46, 193,192.09 and 82,590.44 is: 113,992.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,972.46 : 193,192.09 = 82,590.44 : x
  2. Step 2: Convert to fraction form
    139,972.46/193,192.09 = 82,590.44/x
  3. Step 3: Cross multiply
    139,972.46x = 193,192.09 × 82,590.44
  4. Step 4: Simplify right side
    139,972.46x = 15,955,818,545.18
  5. Step 5: Solve for x
    x = 15,955,818,545.18/139,972.46
  6. Step 6: Final answer
    x = 113,992.56

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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.