Home / 198,138.10-297,196.70-65,000.84

Finding the Fourth Proportional to 198,138.10, 297,196.70 and 65,000.84

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Solution

The fourth proportional to 198,138.10, 297,196.70 and 65,000.84 is: 97,497.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,138.10 : 297,196.70 = 65,000.84 : x
  2. Step 2: Convert to fraction form
    198,138.10/297,196.70 = 65,000.84/x
  3. Step 3: Cross multiply
    198,138.10x = 297,196.70 × 65,000.84
  4. Step 4: Simplify right side
    198,138.10x = 19,318,035,145.23
  5. Step 5: Solve for x
    x = 19,318,035,145.23/198,138.10
  6. Step 6: Final answer
    x = 97,497.83

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1.5x scale

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.