Home / 122,849.84-184,082.78-85,482.92

Finding the Fourth Proportional to 122,849.84, 184,082.78 and 85,482.92

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Solution

The fourth proportional to 122,849.84, 184,082.78 and 85,482.92 is: 128,090.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,849.84 : 184,082.78 = 85,482.92 : x
  2. Step 2: Convert to fraction form
    122,849.84/184,082.78 = 85,482.92/x
  3. Step 3: Cross multiply
    122,849.84x = 184,082.78 × 85,482.92
  4. Step 4: Simplify right side
    122,849.84x = 15,735,933,556.12
  5. Step 5: Solve for x
    x = 15,735,933,556.12/122,849.84
  6. Step 6: Final answer
    x = 128,090.79

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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.