Home / 101,297.12-139,789.68-55,973.84

Finding the Fourth Proportional to 101,297.12, 139,789.68 and 55,973.84

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Solution

The fourth proportional to 101,297.12, 139,789.68 and 55,973.84 is: 77,243.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,297.12 : 139,789.68 = 55,973.84 : x
  2. Step 2: Convert to fraction form
    101,297.12/139,789.68 = 55,973.84/x
  3. Step 3: Cross multiply
    101,297.12x = 139,789.68 × 55,973.84
  4. Step 4: Simplify right side
    101,297.12x = 7,824,565,181.97
  5. Step 5: Solve for x
    x = 7,824,565,181.97/101,297.12
  6. Step 6: Final answer
    x = 77,243.71

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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.