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Finding the Fourth Proportional to 151,892.20, 209,889.06 and 131,684.20

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Solution

The fourth proportional to 151,892.20, 209,889.06 and 131,684.20 is: 181,965.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,892.20 : 209,889.06 = 131,684.20 : x
  2. Step 2: Convert to fraction form
    151,892.20/209,889.06 = 131,684.20/x
  3. Step 3: Cross multiply
    151,892.20x = 209,889.06 × 131,684.20
  4. Step 4: Simplify right side
    151,892.20x = 27,639,072,954.85
  5. Step 5: Solve for x
    x = 27,639,072,954.85/151,892.20
  6. Step 6: Final answer
    x = 181,965.06

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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.