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Finding the Fourth Proportional to 144,549.10, 199,471.20 and 80,020.72

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Solution

The fourth proportional to 144,549.10, 199,471.20 and 80,020.72 is: 110,424.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,549.10 : 199,471.20 = 80,020.72 : x
  2. Step 2: Convert to fraction form
    144,549.10/199,471.20 = 80,020.72/x
  3. Step 3: Cross multiply
    144,549.10x = 199,471.20 × 80,020.72
  4. Step 4: Simplify right side
    144,549.10x = 15,961,829,043.26
  5. Step 5: Solve for x
    x = 15,961,829,043.26/144,549.10
  6. Step 6: Final answer
    x = 110,424.96

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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.