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Finding the Fourth Proportional to 157,825.89, 236,811.87 and 69,067.71

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Solution

The fourth proportional to 157,825.89, 236,811.87 and 69,067.71 is: 103,633.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,825.89 : 236,811.87 = 69,067.71 : x
  2. Step 2: Convert to fraction form
    157,825.89/236,811.87 = 69,067.71/x
  3. Step 3: Cross multiply
    157,825.89x = 236,811.87 × 69,067.71
  4. Step 4: Simplify right side
    157,825.89x = 16,356,053,561.72
  5. Step 5: Solve for x
    x = 16,356,053,561.72/157,825.89
  6. Step 6: Final answer
    x = 103,633.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.