Home / 198,601.02-297,733.50-86,196.20

Finding the Fourth Proportional to 198,601.02, 297,733.50 and 86,196.20

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Solution

The fourth proportional to 198,601.02, 297,733.50 and 86,196.20 is: 129,221.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,601.02 : 297,733.50 = 86,196.20 : x
  2. Step 2: Convert to fraction form
    198,601.02/297,733.50 = 86,196.20/x
  3. Step 3: Cross multiply
    198,601.02x = 297,733.50 × 86,196.20
  4. Step 4: Simplify right side
    198,601.02x = 25,663,494,824.03
  5. Step 5: Solve for x
    x = 25,663,494,824.03/198,601.02
  6. Step 6: Final answer
    x = 129,221.36

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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.