Home / 149,529.66-206,382.95-85,902.54

Finding the Fourth Proportional to 149,529.66, 206,382.95 and 85,902.54

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Solution

The fourth proportional to 149,529.66, 206,382.95 and 85,902.54 is: 118,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,529.66 : 206,382.95 = 85,902.54 : x
  2. Step 2: Convert to fraction form
    149,529.66/206,382.95 = 85,902.54/x
  3. Step 3: Cross multiply
    149,529.66x = 206,382.95 × 85,902.54
  4. Step 4: Simplify right side
    149,529.66x = 17,728,819,617.69
  5. Step 5: Solve for x
    x = 17,728,819,617.69/149,529.66
  6. Step 6: Final answer
    x = 118,563.90

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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.