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Finding the Fourth Proportional to 147,269.40, 203,230.26 and 80,201.40

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Solution

The fourth proportional to 147,269.40, 203,230.26 and 80,201.40 is: 110,677.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,269.40 : 203,230.26 = 80,201.40 : x
  2. Step 2: Convert to fraction form
    147,269.40/203,230.26 = 80,201.40/x
  3. Step 3: Cross multiply
    147,269.40x = 203,230.26 × 80,201.40
  4. Step 4: Simplify right side
    147,269.40x = 16,299,351,374.36
  5. Step 5: Solve for x
    x = 16,299,351,374.36/147,269.40
  6. Step 6: Final answer
    x = 110,677.11

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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.