Home / 198,884.75-298,090.04-138,586.77

Finding the Fourth Proportional to 198,884.75, 298,090.04 and 138,586.77

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Solution

The fourth proportional to 198,884.75, 298,090.04 and 138,586.77 is: 207,714.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,884.75 : 298,090.04 = 138,586.77 : x
  2. Step 2: Convert to fraction form
    198,884.75/298,090.04 = 138,586.77/x
  3. Step 3: Cross multiply
    198,884.75x = 298,090.04 × 138,586.77
  4. Step 4: Simplify right side
    198,884.75x = 41,311,336,153.10
  5. Step 5: Solve for x
    x = 41,311,336,153.10/198,884.75
  6. Step 6: Final answer
    x = 207,714.95

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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.