Home / 198,053.43-297,103.20-71,753.13

Finding the Fourth Proportional to 198,053.43, 297,103.20 and 71,753.13

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Solution

The fourth proportional to 198,053.43, 297,103.20 and 71,753.13 is: 107,638.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,053.43 : 297,103.20 = 71,753.13 : x
  2. Step 2: Convert to fraction form
    198,053.43/297,103.20 = 71,753.13/x
  3. Step 3: Cross multiply
    198,053.43x = 297,103.20 × 71,753.13
  4. Step 4: Simplify right side
    198,053.43x = 21,318,084,533.02
  5. Step 5: Solve for x
    x = 21,318,084,533.02/198,053.43
  6. Step 6: Final answer
    x = 107,638.05

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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.