Home / 133,721.72-184,556.30-85,344.52

Finding the Fourth Proportional to 133,721.72, 184,556.30 and 85,344.52

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Solution

The fourth proportional to 133,721.72, 184,556.30 and 85,344.52 is: 117,788.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,721.72 : 184,556.30 = 85,344.52 : x
  2. Step 2: Convert to fraction form
    133,721.72/184,556.30 = 85,344.52/x
  3. Step 3: Cross multiply
    133,721.72x = 184,556.30 × 85,344.52
  4. Step 4: Simplify right side
    133,721.72x = 15,750,868,409.75
  5. Step 5: Solve for x
    x = 15,750,868,409.75/133,721.72
  6. Step 6: Final answer
    x = 117,788.41

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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.