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Finding the Fourth Proportional to 137,151.59, 189,307.22 and 79,801.97

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Solution

The fourth proportional to 137,151.59, 189,307.22 and 79,801.97 is: 110,148.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,151.59 : 189,307.22 = 79,801.97 : x
  2. Step 2: Convert to fraction form
    137,151.59/189,307.22 = 79,801.97/x
  3. Step 3: Cross multiply
    137,151.59x = 189,307.22 × 79,801.97
  4. Step 4: Simplify right side
    137,151.59x = 15,107,087,745.68
  5. Step 5: Solve for x
    x = 15,107,087,745.68/137,151.59
  6. Step 6: Final answer
    x = 110,148.84

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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.