Home / 133,719.40-184,508.58-85,961.80

Finding the Fourth Proportional to 133,719.40, 184,508.58 and 85,961.80

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Solution

The fourth proportional to 133,719.40, 184,508.58 and 85,961.80 is: 118,611.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,719.40 : 184,508.58 = 85,961.80 : x
  2. Step 2: Convert to fraction form
    133,719.40/184,508.58 = 85,961.80/x
  3. Step 3: Cross multiply
    133,719.40x = 184,508.58 × 85,961.80
  4. Step 4: Simplify right side
    133,719.40x = 15,860,689,652.24
  5. Step 5: Solve for x
    x = 15,860,689,652.24/133,719.40
  6. Step 6: Final answer
    x = 118,611.73

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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.