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Finding the Fourth Proportional to 101,556.34, 140,415.27 and 88,944.94

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Solution

The fourth proportional to 101,556.34, 140,415.27 and 88,944.94 is: 122,978.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,556.34 : 140,415.27 = 88,944.94 : x
  2. Step 2: Convert to fraction form
    101,556.34/140,415.27 = 88,944.94/x
  3. Step 3: Cross multiply
    101,556.34x = 140,415.27 × 88,944.94
  4. Step 4: Simplify right side
    101,556.34x = 12,489,227,747.74
  5. Step 5: Solve for x
    x = 12,489,227,747.74/101,556.34
  6. Step 6: Final answer
    x = 122,978.32

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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.