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Finding the Fourth Proportional to 147,682.20, 203,801.72 and 80,614.20

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Solution

The fourth proportional to 147,682.20, 203,801.72 and 80,614.20 is: 111,247.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,682.20 : 203,801.72 = 80,614.20 : x
  2. Step 2: Convert to fraction form
    147,682.20/203,801.72 = 80,614.20/x
  3. Step 3: Cross multiply
    147,682.20x = 203,801.72 × 80,614.20
  4. Step 4: Simplify right side
    147,682.20x = 16,429,312,616.42
  5. Step 5: Solve for x
    x = 16,429,312,616.42/147,682.20
  6. Step 6: Final answer
    x = 111,247.75

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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.