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Finding the Fourth Proportional to 101,499.68, 140,067.60 and 56,177.66

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Solution

The fourth proportional to 101,499.68, 140,067.60 and 56,177.66 is: 77,524.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,499.68 : 140,067.60 = 56,177.66 : x
  2. Step 2: Convert to fraction form
    101,499.68/140,067.60 = 56,177.66/x
  3. Step 3: Cross multiply
    101,499.68x = 140,067.60 × 56,177.66
  4. Step 4: Simplify right side
    101,499.68x = 7,868,670,009.82
  5. Step 5: Solve for x
    x = 7,868,670,009.82/101,499.68
  6. Step 6: Final answer
    x = 77,524.09

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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.