Home / 208,142.54-312,227.26-73,190.06

Finding the Fourth Proportional to 208,142.54, 312,227.26 and 73,190.06

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Solution

The fourth proportional to 208,142.54, 312,227.26 and 73,190.06 is: 109,789.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,142.54 : 312,227.26 = 73,190.06 : x
  2. Step 2: Convert to fraction form
    208,142.54/312,227.26 = 73,190.06/x
  3. Step 3: Cross multiply
    208,142.54x = 312,227.26 × 73,190.06
  4. Step 4: Simplify right side
    208,142.54x = 22,851,931,893.04
  5. Step 5: Solve for x
    x = 22,851,931,893.04/208,142.54
  6. Step 6: Final answer
    x = 109,789.82

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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.