Home / 101,265.61-139,743.85-55,936.28

Finding the Fourth Proportional to 101,265.61, 139,743.85 and 55,936.28

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Solution

The fourth proportional to 101,265.61, 139,743.85 and 55,936.28 is: 77,190.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,265.61 : 139,743.85 = 55,936.28 : x
  2. Step 2: Convert to fraction form
    101,265.61/139,743.85 = 55,936.28/x
  3. Step 3: Cross multiply
    101,265.61x = 139,743.85 × 55,936.28
  4. Step 4: Simplify right side
    101,265.61x = 7,816,751,121.88
  5. Step 5: Solve for x
    x = 7,816,751,121.88/101,265.61
  6. Step 6: Final answer
    x = 77,190.58

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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.