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Finding the Fourth Proportional to 134,080.80, 184,879.87 and 85,619.00

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Solution

The fourth proportional to 134,080.80, 184,879.87 and 85,619.00 is: 118,057.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,080.80 : 184,879.87 = 85,619.00 : x
  2. Step 2: Convert to fraction form
    134,080.80/184,879.87 = 85,619.00/x
  3. Step 3: Cross multiply
    134,080.80x = 184,879.87 × 85,619.00
  4. Step 4: Simplify right side
    134,080.80x = 15,829,229,837.68
  5. Step 5: Solve for x
    x = 15,829,229,837.68/134,080.80
  6. Step 6: Final answer
    x = 118,057.39

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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.