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Finding the Fourth Proportional to 159,714.82, 239,728.04 and 131,918.05

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Solution

The fourth proportional to 159,714.82, 239,728.04 and 131,918.05 is: 198,005.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,714.82 : 239,728.04 = 131,918.05 : x
  2. Step 2: Convert to fraction form
    159,714.82/239,728.04 = 131,918.05/x
  3. Step 3: Cross multiply
    159,714.82x = 239,728.04 × 131,918.05
  4. Step 4: Simplify right side
    159,714.82x = 31,624,453,708.89
  5. Step 5: Solve for x
    x = 31,624,453,708.89/159,714.82
  6. Step 6: Final answer
    x = 198,005.76

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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.