Home / 149,539.92-206,356.98-85,000.20

Finding the Fourth Proportional to 149,539.92, 206,356.98 and 85,000.20

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Solution

The fourth proportional to 149,539.92, 206,356.98 and 85,000.20 is: 117,295.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,539.92 : 206,356.98 = 85,000.20 : x
  2. Step 2: Convert to fraction form
    149,539.92/206,356.98 = 85,000.20/x
  3. Step 3: Cross multiply
    149,539.92x = 206,356.98 × 85,000.20
  4. Step 4: Simplify right side
    149,539.92x = 17,540,384,890.15
  5. Step 5: Solve for x
    x = 17,540,384,890.15/149,539.92
  6. Step 6: Final answer
    x = 117,295.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.