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Finding the Fourth Proportional to 136,822.80, 205,234.20 and 36,998.40

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Solution

The fourth proportional to 136,822.80, 205,234.20 and 36,998.40 is: 55,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,822.80 : 205,234.20 = 36,998.40 : x
  2. Step 2: Convert to fraction form
    136,822.80/205,234.20 = 36,998.40/x
  3. Step 3: Cross multiply
    136,822.80x = 205,234.20 × 36,998.40
  4. Step 4: Simplify right side
    136,822.80x = 7,593,337,025.28
  5. Step 5: Solve for x
    x = 7,593,337,025.28/136,822.80
  6. Step 6: Final answer
    x = 55,497.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.