Home / 198,511.74-297,600.14-86,107.33

Finding the Fourth Proportional to 198,511.74, 297,600.14 and 86,107.33

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Solution

The fourth proportional to 198,511.74, 297,600.14 and 86,107.33 is: 129,088.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,511.74 : 297,600.14 = 86,107.33 : x
  2. Step 2: Convert to fraction form
    198,511.74/297,600.14 = 86,107.33/x
  3. Step 3: Cross multiply
    198,511.74x = 297,600.14 × 86,107.33
  4. Step 4: Simplify right side
    198,511.74x = 25,625,553,463.03
  5. Step 5: Solve for x
    x = 25,625,553,463.03/198,511.74
  6. Step 6: Final answer
    x = 129,088.35

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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.