Home / 130,474.12-195,720.78-40,505.04

Finding the Fourth Proportional to 130,474.12, 195,720.78 and 40,505.04

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Solution

The fourth proportional to 130,474.12, 195,720.78 and 40,505.04 is: 60,760.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,474.12 : 195,720.78 = 40,505.04 : x
  2. Step 2: Convert to fraction form
    130,474.12/195,720.78 = 40,505.04/x
  3. Step 3: Cross multiply
    130,474.12x = 195,720.78 × 40,505.04
  4. Step 4: Simplify right side
    130,474.12x = 7,927,678,022.73
  5. Step 5: Solve for x
    x = 7,927,678,022.73/130,474.12
  6. Step 6: Final answer
    x = 60,760.54

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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.