Home / 208,313.74-312,471.06-75,287.92

Finding the Fourth Proportional to 208,313.74, 312,471.06 and 75,287.92

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Solution

The fourth proportional to 208,313.74, 312,471.06 and 75,287.92 is: 112,932.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,313.74 : 312,471.06 = 75,287.92 : x
  2. Step 2: Convert to fraction form
    208,313.74/312,471.06 = 75,287.92/x
  3. Step 3: Cross multiply
    208,313.74x = 312,471.06 × 75,287.92
  4. Step 4: Simplify right side
    208,313.74x = 23,525,296,167.60
  5. Step 5: Solve for x
    x = 23,525,296,167.60/208,313.74
  6. Step 6: Final answer
    x = 112,932.04

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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.