Home / 149,158.17-205,847.46-85,505.54

Finding the Fourth Proportional to 149,158.17, 205,847.46 and 85,505.54

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Solution

The fourth proportional to 149,158.17, 205,847.46 and 85,505.54 is: 118,002.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,158.17 : 205,847.46 = 85,505.54 : x
  2. Step 2: Convert to fraction form
    149,158.17/205,847.46 = 85,505.54/x
  3. Step 3: Cross multiply
    149,158.17x = 205,847.46 × 85,505.54
  4. Step 4: Simplify right side
    149,158.17x = 17,601,097,195.69
  5. Step 5: Solve for x
    x = 17,601,097,195.69/149,158.17
  6. Step 6: Final answer
    x = 118,002.90

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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.