Home / 133,921.12-184,765.37-76,519.26

Finding the Fourth Proportional to 133,921.12, 184,765.37 and 76,519.26

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Solution

The fourth proportional to 133,921.12, 184,765.37 and 76,519.26 is: 105,570.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,921.12 : 184,765.37 = 76,519.26 : x
  2. Step 2: Convert to fraction form
    133,921.12/184,765.37 = 76,519.26/x
  3. Step 3: Cross multiply
    133,921.12x = 184,765.37 × 76,519.26
  4. Step 4: Simplify right side
    133,921.12x = 14,138,109,386.03
  5. Step 5: Solve for x
    x = 14,138,109,386.03/133,921.12
  6. Step 6: Final answer
    x = 105,570.42

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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.