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Finding the Fourth Proportional to 101,610.88, 140,222.99 and 56,291.81

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Solution

The fourth proportional to 101,610.88, 140,222.99 and 56,291.81 is: 77,682.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,610.88 : 140,222.99 = 56,291.81 : x
  2. Step 2: Convert to fraction form
    101,610.88/140,222.99 = 56,291.81/x
  3. Step 3: Cross multiply
    101,610.88x = 140,222.99 × 56,291.81
  4. Step 4: Simplify right side
    101,610.88x = 7,893,405,350.33
  5. Step 5: Solve for x
    x = 7,893,405,350.33/101,610.88
  6. Step 6: Final answer
    x = 77,682.68

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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.