Home / 198,511.34-297,599.56-86,106.94

Finding the Fourth Proportional to 198,511.34, 297,599.56 and 86,106.94

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Solution

The fourth proportional to 198,511.34, 297,599.56 and 86,106.94 is: 129,087.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,511.34 : 297,599.56 = 86,106.94 : x
  2. Step 2: Convert to fraction form
    198,511.34/297,599.56 = 86,106.94/x
  3. Step 3: Cross multiply
    198,511.34x = 297,599.56 × 86,106.94
  4. Step 4: Simplify right side
    198,511.34x = 25,625,387,456.95
  5. Step 5: Solve for x
    x = 25,625,387,456.95/198,511.34
  6. Step 6: Final answer
    x = 129,087.78

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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.