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Finding the Fourth Proportional to 115,753.50, 159,760.31 and 68,006.84

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Solution

The fourth proportional to 115,753.50, 159,760.31 and 68,006.84 is: 93,861.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,753.50 : 159,760.31 = 68,006.84 : x
  2. Step 2: Convert to fraction form
    115,753.50/159,760.31 = 68,006.84/x
  3. Step 3: Cross multiply
    115,753.50x = 159,760.31 × 68,006.84
  4. Step 4: Simplify right side
    115,753.50x = 10,864,792,701.68
  5. Step 5: Solve for x
    x = 10,864,792,701.68/115,753.50
  6. Step 6: Final answer
    x = 93,861.46

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1.5x scale

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.