Home / 208,078.96-312,132.27-73,126.70

Finding the Fourth Proportional to 208,078.96, 312,132.27 and 73,126.70

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Solution

The fourth proportional to 208,078.96, 312,132.27 and 73,126.70 is: 109,694.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,078.96 : 312,132.27 = 73,126.70 : x
  2. Step 2: Convert to fraction form
    208,078.96/312,132.27 = 73,126.70/x
  3. Step 3: Cross multiply
    208,078.96x = 312,132.27 × 73,126.70
  4. Step 4: Simplify right side
    208,078.96x = 22,825,203,648.94
  5. Step 5: Solve for x
    x = 22,825,203,648.94/208,078.96
  6. Step 6: Final answer
    x = 109,694.92

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1.5x scale

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.