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Finding the Fourth Proportional to 101,467.09, 140,015.05 and 68,694.84

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Solution

The fourth proportional to 101,467.09, 140,015.05 and 68,694.84 is: 94,792.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,467.09 : 140,015.05 = 68,694.84 : x
  2. Step 2: Convert to fraction form
    101,467.09/140,015.05 = 68,694.84/x
  3. Step 3: Cross multiply
    101,467.09x = 140,015.05 × 68,694.84
  4. Step 4: Simplify right side
    101,467.09x = 9,618,311,457.34
  5. Step 5: Solve for x
    x = 9,618,311,457.34/101,467.09
  6. Step 6: Final answer
    x = 94,792.42

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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.