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Finding the Fourth Proportional to 101,998.50, 140,766.57 and 57,295.14

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Solution

The fourth proportional to 101,998.50, 140,766.57 and 57,295.14 is: 79,072.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,998.50 : 140,766.57 = 57,295.14 : x
  2. Step 2: Convert to fraction form
    101,998.50/140,766.57 = 57,295.14/x
  3. Step 3: Cross multiply
    101,998.50x = 140,766.57 × 57,295.14
  4. Step 4: Simplify right side
    101,998.50x = 8,065,240,335.47
  5. Step 5: Solve for x
    x = 8,065,240,335.47/101,998.50
  6. Step 6: Final answer
    x = 79,072.15

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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.