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Finding the Fourth Proportional to 171,109.48, 256,664.70 and 100,892.20

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Solution

The fourth proportional to 171,109.48, 256,664.70 and 100,892.20 is: 151,338.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,109.48 : 256,664.70 = 100,892.20 : x
  2. Step 2: Convert to fraction form
    171,109.48/256,664.70 = 100,892.20/x
  3. Step 3: Cross multiply
    171,109.48x = 256,664.70 × 100,892.20
  4. Step 4: Simplify right side
    171,109.48x = 25,895,466,245.34
  5. Step 5: Solve for x
    x = 25,895,466,245.34/171,109.48
  6. Step 6: Final answer
    x = 151,338.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.