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Finding the Fourth Proportional to 146,008.44, 201,491.94 and 78,940.44

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Solution

The fourth proportional to 146,008.44, 201,491.94 and 78,940.44 is: 108,937.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,008.44 : 201,491.94 = 78,940.44 : x
  2. Step 2: Convert to fraction form
    146,008.44/201,491.94 = 78,940.44/x
  3. Step 3: Cross multiply
    146,008.44x = 201,491.94 × 78,940.44
  4. Step 4: Simplify right side
    146,008.44x = 15,905,862,400.05
  5. Step 5: Solve for x
    x = 15,905,862,400.05/146,008.44
  6. Step 6: Final answer
    x = 108,937.97

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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.