Home / 101,228.11-139,695.83-55,907.22

Finding the Fourth Proportional to 101,228.11, 139,695.83 and 55,907.22

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Solution

The fourth proportional to 101,228.11, 139,695.83 and 55,907.22 is: 77,152.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,228.11 : 139,695.83 = 55,907.22 : x
  2. Step 2: Convert to fraction form
    101,228.11/139,695.83 = 55,907.22/x
  3. Step 3: Cross multiply
    101,228.11x = 139,695.83 × 55,907.22
  4. Step 4: Simplify right side
    101,228.11x = 7,810,005,640.66
  5. Step 5: Solve for x
    x = 7,810,005,640.66/101,228.11
  6. Step 6: Final answer
    x = 77,152.54

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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.