Home / 211,814.92-317,625.49-126,464.52

Finding the Fourth Proportional to 211,814.92, 317,625.49 and 126,464.52

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Solution

The fourth proportional to 211,814.92, 317,625.49 and 126,464.52 is: 189,638.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,814.92 : 317,625.49 = 126,464.52 : x
  2. Step 2: Convert to fraction form
    211,814.92/317,625.49 = 126,464.52/x
  3. Step 3: Cross multiply
    211,814.92x = 317,625.49 × 126,464.52
  4. Step 4: Simplify right side
    211,814.92x = 40,168,355,132.61
  5. Step 5: Solve for x
    x = 40,168,355,132.61/211,814.92
  6. Step 6: Final answer
    x = 189,638.93

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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.