Home / 198,723.40-297,982.70-74,000.20

Finding the Fourth Proportional to 198,723.40, 297,982.70 and 74,000.20

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Solution

The fourth proportional to 198,723.40, 297,982.70 and 74,000.20 is: 110,962.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,723.40 : 297,982.70 = 74,000.20 : x
  2. Step 2: Convert to fraction form
    198,723.40/297,982.70 = 74,000.20/x
  3. Step 3: Cross multiply
    198,723.40x = 297,982.70 × 74,000.20
  4. Step 4: Simplify right side
    198,723.40x = 22,050,779,396.54
  5. Step 5: Solve for x
    x = 22,050,779,396.54/198,723.40
  6. Step 6: Final answer
    x = 110,962.17

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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.