Home / 139,554.20-209,331.30-132,337.10

Finding the Fourth Proportional to 139,554.20, 209,331.30 and 132,337.10

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Solution

The fourth proportional to 139,554.20, 209,331.30 and 132,337.10 is: 198,505.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,554.20 : 209,331.30 = 132,337.10 : x
  2. Step 2: Convert to fraction form
    139,554.20/209,331.30 = 132,337.10/x
  3. Step 3: Cross multiply
    139,554.20x = 209,331.30 × 132,337.10
  4. Step 4: Simplify right side
    139,554.20x = 27,702,297,181.23
  5. Step 5: Solve for x
    x = 27,702,297,181.23/139,554.20
  6. Step 6: Final answer
    x = 198,505.65

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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.