Home / 208,268.96-312,338.70-75,131.82

Finding the Fourth Proportional to 208,268.96, 312,338.70 and 75,131.82

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Solution

The fourth proportional to 208,268.96, 312,338.70 and 75,131.82 is: 112,674.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,268.96 : 312,338.70 = 75,131.82 : x
  2. Step 2: Convert to fraction form
    208,268.96/312,338.70 = 75,131.82/x
  3. Step 3: Cross multiply
    208,268.96x = 312,338.70 × 75,131.82
  4. Step 4: Simplify right side
    208,268.96x = 23,466,574,987.43
  5. Step 5: Solve for x
    x = 23,466,574,987.43/208,268.96
  6. Step 6: Final answer
    x = 112,674.38

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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.