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Finding the Fourth Proportional to 147,353.68, 203,348.10 and 80,285.68

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Solution

The fourth proportional to 147,353.68, 203,348.10 and 80,285.68 is: 110,794.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,353.68 : 203,348.10 = 80,285.68 : x
  2. Step 2: Convert to fraction form
    147,353.68/203,348.10 = 80,285.68/x
  3. Step 3: Cross multiply
    147,353.68x = 203,348.10 × 80,285.68
  4. Step 4: Simplify right side
    147,353.68x = 16,325,940,485.21
  5. Step 5: Solve for x
    x = 16,325,940,485.21/147,353.68
  6. Step 6: Final answer
    x = 110,794.25

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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.