Home / 208,585.48-312,692.66-75,436.13

Finding the Fourth Proportional to 208,585.48, 312,692.66 and 75,436.13

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Solution

The fourth proportional to 208,585.48, 312,692.66 and 75,436.13 is: 113,087.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,585.48 : 312,692.66 = 75,436.13 : x
  2. Step 2: Convert to fraction form
    208,585.48/312,692.66 = 75,436.13/x
  3. Step 3: Cross multiply
    208,585.48x = 312,692.66 × 75,436.13
  4. Step 4: Simplify right side
    208,585.48x = 23,588,324,837.24
  5. Step 5: Solve for x
    x = 23,588,324,837.24/208,585.48
  6. Step 6: Final answer
    x = 113,087.09

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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.