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Finding the Fourth Proportional to 159,809.56, 239,644.63 and 84,911.64

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Solution

The fourth proportional to 159,809.56, 239,644.63 and 84,911.64 is: 127,330.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,809.56 : 239,644.63 = 84,911.64 : x
  2. Step 2: Convert to fraction form
    159,809.56/239,644.63 = 84,911.64/x
  3. Step 3: Cross multiply
    159,809.56x = 239,644.63 × 84,911.64
  4. Step 4: Simplify right side
    159,809.56x = 20,348,618,628.34
  5. Step 5: Solve for x
    x = 20,348,618,628.34/159,809.56
  6. Step 6: Final answer
    x = 127,330.42

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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.