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Finding the Fourth Proportional to 179,969.82, 269,987.52 and 90,059.52

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Solution

The fourth proportional to 179,969.82, 269,987.52 and 90,059.52 is: 135,105.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,969.82 : 269,987.52 = 90,059.52 : x
  2. Step 2: Convert to fraction form
    179,969.82/269,987.52 = 90,059.52/x
  3. Step 3: Cross multiply
    179,969.82x = 269,987.52 × 90,059.52
  4. Step 4: Simplify right side
    179,969.82x = 24,314,946,457.19
  5. Step 5: Solve for x
    x = 24,314,946,457.19/179,969.82
  6. Step 6: Final answer
    x = 135,105.69

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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.