Home / 208,249.13-312,373.74-75,129.34

Finding the Fourth Proportional to 208,249.13, 312,373.74 and 75,129.34

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Solution

The fourth proportional to 208,249.13, 312,373.74 and 75,129.34 is: 112,694.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,249.13 : 312,373.74 = 75,129.34 : x
  2. Step 2: Convert to fraction form
    208,249.13/312,373.74 = 75,129.34/x
  3. Step 3: Cross multiply
    208,249.13x = 312,373.74 × 75,129.34
  4. Step 4: Simplify right side
    208,249.13x = 23,468,434,204.30
  5. Step 5: Solve for x
    x = 23,468,434,204.30/208,249.13
  6. Step 6: Final answer
    x = 112,694.03

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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.