Home / 211,737.08-317,403.46-78,581.72

Finding the Fourth Proportional to 211,737.08, 317,403.46 and 78,581.72

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Solution

The fourth proportional to 211,737.08, 317,403.46 and 78,581.72 is: 117,797.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,737.08 : 317,403.46 = 78,581.72 : x
  2. Step 2: Convert to fraction form
    211,737.08/317,403.46 = 78,581.72/x
  3. Step 3: Cross multiply
    211,737.08x = 317,403.46 × 78,581.72
  4. Step 4: Simplify right side
    211,737.08x = 24,942,109,820.75
  5. Step 5: Solve for x
    x = 24,942,109,820.75/211,737.08
  6. Step 6: Final answer
    x = 117,797.55

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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.