Home / 101,005.19-139,388.13-55,684.83

Finding the Fourth Proportional to 101,005.19, 139,388.13 and 55,684.83

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Solution

The fourth proportional to 101,005.19, 139,388.13 and 55,684.83 is: 76,845.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,005.19 : 139,388.13 = 55,684.83 : x
  2. Step 2: Convert to fraction form
    101,005.19/139,388.13 = 55,684.83/x
  3. Step 3: Cross multiply
    101,005.19x = 139,388.13 × 55,684.83
  4. Step 4: Simplify right side
    101,005.19x = 7,761,804,845.77
  5. Step 5: Solve for x
    x = 7,761,804,845.77/101,005.19
  6. Step 6: Final answer
    x = 76,845.61

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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.