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Finding the Fourth Proportional to 147,254.88, 203,212.08 and 80,191.20

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Solution

The fourth proportional to 147,254.88, 203,212.08 and 80,191.20 is: 110,664.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,254.88 : 203,212.08 = 80,191.20 : x
  2. Step 2: Convert to fraction form
    147,254.88/203,212.08 = 80,191.20/x
  3. Step 3: Cross multiply
    147,254.88x = 203,212.08 × 80,191.20
  4. Step 4: Simplify right side
    147,254.88x = 16,295,820,549.70
  5. Step 5: Solve for x
    x = 16,295,820,549.70/147,254.88
  6. Step 6: Final answer
    x = 110,664.04

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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.