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Finding the Fourth Proportional to 147,472.63, 203,512.43 and 80,404.63

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Solution

The fourth proportional to 147,472.63, 203,512.43 and 80,404.63 is: 110,958.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,472.63 : 203,512.43 = 80,404.63 : x
  2. Step 2: Convert to fraction form
    147,472.63/203,512.43 = 80,404.63/x
  3. Step 3: Cross multiply
    147,472.63x = 203,512.43 × 80,404.63
  4. Step 4: Simplify right side
    147,472.63x = 16,363,341,634.55
  5. Step 5: Solve for x
    x = 16,363,341,634.55/147,472.63
  6. Step 6: Final answer
    x = 110,958.50

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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.