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Finding the Fourth Proportional to 101,263.94, 139,745.22 and 55,943

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Solution

The fourth proportional to 101,263.94, 139,745.22 and 55,943 is: 77,201.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,263.94 : 139,745.22 = 55,943 : x
  2. Step 2: Convert to fraction form
    101,263.94/139,745.22 = 55,943/x
  3. Step 3: Cross multiply
    101,263.94x = 139,745.22 × 55,943
  4. Step 4: Simplify right side
    101,263.94x = 7,817,766,842.46
  5. Step 5: Solve for x
    x = 7,817,766,842.46/101,263.94
  6. Step 6: Final answer
    x = 77,201.88

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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.