Home / 208,669.36-313,026.60-66,481.10

Finding the Fourth Proportional to 208,669.36, 313,026.60 and 66,481.10

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Solution

The fourth proportional to 208,669.36, 313,026.60 and 66,481.10 is: 99,728.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,669.36 : 313,026.60 = 66,481.10 : x
  2. Step 2: Convert to fraction form
    208,669.36/313,026.60 = 66,481.10/x
  3. Step 3: Cross multiply
    208,669.36x = 313,026.60 × 66,481.10
  4. Step 4: Simplify right side
    208,669.36x = 20,810,352,697.26
  5. Step 5: Solve for x
    x = 20,810,352,697.26/208,669.36
  6. Step 6: Final answer
    x = 99,728.84

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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.