Home / 133,558.12-184,310.13-73,128.72

Finding the Fourth Proportional to 133,558.12, 184,310.13 and 73,128.72

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Solution

The fourth proportional to 133,558.12, 184,310.13 and 73,128.72 is: 100,917.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,558.12 : 184,310.13 = 73,128.72 : x
  2. Step 2: Convert to fraction form
    133,558.12/184,310.13 = 73,128.72/x
  3. Step 3: Cross multiply
    133,558.12x = 184,310.13 × 73,128.72
  4. Step 4: Simplify right side
    133,558.12x = 13,478,363,889.93
  5. Step 5: Solve for x
    x = 13,478,363,889.93/133,558.12
  6. Step 6: Final answer
    x = 100,917.59

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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.