Home / 189,395.64-261,380.73-108,851.26

Finding the Fourth Proportional to 189,395.64, 261,380.73 and 108,851.26

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Solution

The fourth proportional to 189,395.64, 261,380.73 and 108,851.26 is: 150,223.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,395.64 : 261,380.73 = 108,851.26 : x
  2. Step 2: Convert to fraction form
    189,395.64/261,380.73 = 108,851.26/x
  3. Step 3: Cross multiply
    189,395.64x = 261,380.73 × 108,851.26
  4. Step 4: Simplify right side
    189,395.64x = 28,451,621,800.22
  5. Step 5: Solve for x
    x = 28,451,621,800.22/189,395.64
  6. Step 6: Final answer
    x = 150,223.21

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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.