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Finding the Fourth Proportional to 109,486.89, 151,092 and 59,185.89

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Solution

The fourth proportional to 109,486.89, 151,092 and 59,185.89 is: 81,676.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,486.89 : 151,092 = 59,185.89 : x
  2. Step 2: Convert to fraction form
    109,486.89/151,092 = 59,185.89/x
  3. Step 3: Cross multiply
    109,486.89x = 151,092 × 59,185.89
  4. Step 4: Simplify right side
    109,486.89x = 8,942,514,491.88
  5. Step 5: Solve for x
    x = 8,942,514,491.88/109,486.89
  6. Step 6: Final answer
    x = 81,676.58

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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.