Home / 131,181.78-196,814.13-46,939.98

Finding the Fourth Proportional to 131,181.78, 196,814.13 and 46,939.98

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Solution

The fourth proportional to 131,181.78, 196,814.13 and 46,939.98 is: 70,424.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,181.78 : 196,814.13 = 46,939.98 : x
  2. Step 2: Convert to fraction form
    131,181.78/196,814.13 = 46,939.98/x
  3. Step 3: Cross multiply
    131,181.78x = 196,814.13 × 46,939.98
  4. Step 4: Simplify right side
    131,181.78x = 9,238,451,325.92
  5. Step 5: Solve for x
    x = 9,238,451,325.92/131,181.78
  6. Step 6: Final answer
    x = 70,424.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.