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Finding the Fourth Proportional to 101,532.50, 140,095.41 and 65,717.54

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Solution

The fourth proportional to 101,532.50, 140,095.41 and 65,717.54 is: 90,677.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,532.50 : 140,095.41 = 65,717.54 : x
  2. Step 2: Convert to fraction form
    101,532.50/140,095.41 = 65,717.54/x
  3. Step 3: Cross multiply
    101,532.50x = 140,095.41 × 65,717.54
  4. Step 4: Simplify right side
    101,532.50x = 9,206,725,710.49
  5. Step 5: Solve for x
    x = 9,206,725,710.49/101,532.50
  6. Step 6: Final answer
    x = 90,677.62

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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.