Home / 211,641.21-317,379.12-76,673.24

Finding the Fourth Proportional to 211,641.21, 317,379.12 and 76,673.24

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Solution

The fourth proportional to 211,641.21, 317,379.12 and 76,673.24 is: 114,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,641.21 : 317,379.12 = 76,673.24 : x
  2. Step 2: Convert to fraction form
    211,641.21/317,379.12 = 76,673.24/x
  3. Step 3: Cross multiply
    211,641.21x = 317,379.12 × 76,673.24
  4. Step 4: Simplify right side
    211,641.21x = 24,334,485,438.75
  5. Step 5: Solve for x
    x = 24,334,485,438.75/211,641.21
  6. Step 6: Final answer
    x = 114,979.90

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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.