Home / 198,313.12-297,473.28-72,043.04

Finding the Fourth Proportional to 198,313.12, 297,473.28 and 72,043.04

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Solution

The fourth proportional to 198,313.12, 297,473.28 and 72,043.04 is: 108,065.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,313.12 : 297,473.28 = 72,043.04 : x
  2. Step 2: Convert to fraction form
    198,313.12/297,473.28 = 72,043.04/x
  3. Step 3: Cross multiply
    198,313.12x = 297,473.28 × 72,043.04
  4. Step 4: Simplify right side
    198,313.12x = 21,430,879,409.97
  5. Step 5: Solve for x
    x = 21,430,879,409.97/198,313.12
  6. Step 6: Final answer
    x = 108,065.87

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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.