Home / 198,518.75-297,777.41-86,184.30

Finding the Fourth Proportional to 198,518.75, 297,777.41 and 86,184.30

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Solution

The fourth proportional to 198,518.75, 297,777.41 and 86,184.30 is: 129,276.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,518.75 : 297,777.41 = 86,184.30 : x
  2. Step 2: Convert to fraction form
    198,518.75/297,777.41 = 86,184.30/x
  3. Step 3: Cross multiply
    198,518.75x = 297,777.41 × 86,184.30
  4. Step 4: Simplify right side
    198,518.75x = 25,663,737,636.66
  5. Step 5: Solve for x
    x = 25,663,737,636.66/198,518.75
  6. Step 6: Final answer
    x = 129,276.14

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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.