Home / 198,634.32-297,857.70-72,186.48

Finding the Fourth Proportional to 198,634.32, 297,857.70 and 72,186.48

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Solution

The fourth proportional to 198,634.32, 297,857.70 and 72,186.48 is: 108,245.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,634.32 : 297,857.70 = 72,186.48 : x
  2. Step 2: Convert to fraction form
    198,634.32/297,857.70 = 72,186.48/x
  3. Step 3: Cross multiply
    198,634.32x = 297,857.70 × 72,186.48
  4. Step 4: Simplify right side
    198,634.32x = 21,501,298,903.90
  5. Step 5: Solve for x
    x = 21,501,298,903.90/198,634.32
  6. Step 6: Final answer
    x = 108,245.64

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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.