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Finding the Fourth Proportional to 144,709.56, 199,700.70 and 80,180.78

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Solution

The fourth proportional to 144,709.56, 199,700.70 and 80,180.78 is: 110,650.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,709.56 : 199,700.70 = 80,180.78 : x
  2. Step 2: Convert to fraction form
    144,709.56/199,700.70 = 80,180.78/x
  3. Step 3: Cross multiply
    144,709.56x = 199,700.70 × 80,180.78
  4. Step 4: Simplify right side
    144,709.56x = 16,012,157,892.55
  5. Step 5: Solve for x
    x = 16,012,157,892.55/144,709.56
  6. Step 6: Final answer
    x = 110,650.31

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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.