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Finding the Fourth Proportional to 159,563.42, 220,198.85 and 87,943.62

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Solution

The fourth proportional to 159,563.42, 220,198.85 and 87,943.62 is: 121,362.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,563.42 : 220,198.85 = 87,943.62 : x
  2. Step 2: Convert to fraction form
    159,563.42/220,198.85 = 87,943.62/x
  3. Step 3: Cross multiply
    159,563.42x = 220,198.85 × 87,943.62
  4. Step 4: Simplify right side
    159,563.42x = 19,365,085,199.34
  5. Step 5: Solve for x
    x = 19,365,085,199.34/159,563.42
  6. Step 6: Final answer
    x = 121,362.94

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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.