Home / 133,857.28-184,727.04-74,240

Finding the Fourth Proportional to 133,857.28, 184,727.04 and 74,240

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Solution

The fourth proportional to 133,857.28, 184,727.04 and 74,240 is: 102,453.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,857.28 : 184,727.04 = 74,240 : x
  2. Step 2: Convert to fraction form
    133,857.28/184,727.04 = 74,240/x
  3. Step 3: Cross multiply
    133,857.28x = 184,727.04 × 74,240
  4. Step 4: Simplify right side
    133,857.28x = 13,714,135,449.60
  5. Step 5: Solve for x
    x = 13,714,135,449.60/133,857.28
  6. Step 6: Final answer
    x = 102,453.41

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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.