Home / 100,950.25-139,181.95-82,733.91

Finding the Fourth Proportional to 100,950.25, 139,181.95 and 82,733.91

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Solution

The fourth proportional to 100,950.25, 139,181.95 and 82,733.91 is: 114,066.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,950.25 : 139,181.95 = 82,733.91 : x
  2. Step 2: Convert to fraction form
    100,950.25/139,181.95 = 82,733.91/x
  3. Step 3: Cross multiply
    100,950.25x = 139,181.95 × 82,733.91
  4. Step 4: Simplify right side
    100,950.25x = 11,515,066,924.92
  5. Step 5: Solve for x
    x = 11,515,066,924.92/100,950.25
  6. Step 6: Final answer
    x = 114,066.75

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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.