Home / 198,522.06-297,782.38-86,187.62

Finding the Fourth Proportional to 198,522.06, 297,782.38 and 86,187.62

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Solution

The fourth proportional to 198,522.06, 297,782.38 and 86,187.62 is: 129,281.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,522.06 : 297,782.38 = 86,187.62 : x
  2. Step 2: Convert to fraction form
    198,522.06/297,782.38 = 86,187.62/x
  3. Step 3: Cross multiply
    198,522.06x = 297,782.38 × 86,187.62
  4. Step 4: Simplify right side
    198,522.06x = 25,665,153,228.96
  5. Step 5: Solve for x
    x = 25,665,153,228.96/198,522.06
  6. Step 6: Final answer
    x = 129,281.11

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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.