Home / 104,589.12-156,795.48-45,380.28

Finding the Fourth Proportional to 104,589.12, 156,795.48 and 45,380.28

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Solution

The fourth proportional to 104,589.12, 156,795.48 and 45,380.28 is: 68,032.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,589.12 : 156,795.48 = 45,380.28 : x
  2. Step 2: Convert to fraction form
    104,589.12/156,795.48 = 45,380.28/x
  3. Step 3: Cross multiply
    104,589.12x = 156,795.48 × 45,380.28
  4. Step 4: Simplify right side
    104,589.12x = 7,115,422,785.13
  5. Step 5: Solve for x
    x = 7,115,422,785.13/104,589.12
  6. Step 6: Final answer
    x = 68,032.15

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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.