Home / 198,700.34-297,870.21-72,251.24

Finding the Fourth Proportional to 198,700.34, 297,870.21 and 72,251.24

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Solution

The fourth proportional to 198,700.34, 297,870.21 and 72,251.24 is: 108,311.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,700.34 : 297,870.21 = 72,251.24 : x
  2. Step 2: Convert to fraction form
    198,700.34/297,870.21 = 72,251.24/x
  3. Step 3: Cross multiply
    198,700.34x = 297,870.21 × 72,251.24
  4. Step 4: Simplify right side
    198,700.34x = 21,521,490,542.21
  5. Step 5: Solve for x
    x = 21,521,490,542.21/198,700.34
  6. Step 6: Final answer
    x = 108,311.29

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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.