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Finding the Fourth Proportional to 171,132.42, 256,699.06 and 69,930.48

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Solution

The fourth proportional to 171,132.42, 256,699.06 and 69,930.48 is: 104,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,132.42 : 256,699.06 = 69,930.48 : x
  2. Step 2: Convert to fraction form
    171,132.42/256,699.06 = 69,930.48/x
  3. Step 3: Cross multiply
    171,132.42x = 256,699.06 × 69,930.48
  4. Step 4: Simplify right side
    171,132.42x = 17,951,088,481.35
  5. Step 5: Solve for x
    x = 17,951,088,481.35/171,132.42
  6. Step 6: Final answer
    x = 104,895.90

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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.