Home / 198,486.46-297,729.24-86,152.12

Finding the Fourth Proportional to 198,486.46, 297,729.24 and 86,152.12

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Solution

The fourth proportional to 198,486.46, 297,729.24 and 86,152.12 is: 129,227.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,486.46 : 297,729.24 = 86,152.12 : x
  2. Step 2: Convert to fraction form
    198,486.46/297,729.24 = 86,152.12/x
  3. Step 3: Cross multiply
    198,486.46x = 297,729.24 × 86,152.12
  4. Step 4: Simplify right side
    198,486.46x = 25,650,005,211.99
  5. Step 5: Solve for x
    x = 25,650,005,211.99/198,486.46
  6. Step 6: Final answer
    x = 129,227.98

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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.