Home / 101,286.02-139,771.77-55,963.28

Finding the Fourth Proportional to 101,286.02, 139,771.77 and 55,963.28

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Solution

The fourth proportional to 101,286.02, 139,771.77 and 55,963.28 is: 77,227.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,286.02 : 139,771.77 = 55,963.28 : x
  2. Step 2: Convert to fraction form
    101,286.02/139,771.77 = 55,963.28/x
  3. Step 3: Cross multiply
    101,286.02x = 139,771.77 × 55,963.28
  4. Step 4: Simplify right side
    101,286.02x = 7,822,086,700.61
  5. Step 5: Solve for x
    x = 7,822,086,700.61/101,286.02
  6. Step 6: Final answer
    x = 77,227.70

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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.