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Finding the Fourth Proportional to 109,477.34, 151,089.19 and 68,647.97

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Solution

The fourth proportional to 109,477.34, 151,089.19 and 68,647.97 is: 94,740.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,477.34 : 151,089.19 = 68,647.97 : x
  2. Step 2: Convert to fraction form
    109,477.34/151,089.19 = 68,647.97/x
  3. Step 3: Cross multiply
    109,477.34x = 151,089.19 × 68,647.97
  4. Step 4: Simplify right side
    109,477.34x = 10,371,965,255.38
  5. Step 5: Solve for x
    x = 10,371,965,255.38/109,477.34
  6. Step 6: Final answer
    x = 94,740.75

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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.