Home / 208,664.02-312,991.17-113,986.36

Finding the Fourth Proportional to 208,664.02, 312,991.17 and 113,986.36

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Solution

The fourth proportional to 208,664.02, 312,991.17 and 113,986.36 is: 170,976.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,664.02 : 312,991.17 = 113,986.36 : x
  2. Step 2: Convert to fraction form
    208,664.02/312,991.17 = 113,986.36/x
  3. Step 3: Cross multiply
    208,664.02x = 312,991.17 × 113,986.36
  4. Step 4: Simplify right side
    208,664.02x = 35,676,724,180.44
  5. Step 5: Solve for x
    x = 35,676,724,180.44/208,664.02
  6. Step 6: Final answer
    x = 170,976.89

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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.