Home / 211,913.33-317,861.78-71,671.95

Finding the Fourth Proportional to 211,913.33, 317,861.78 and 71,671.95

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Solution

The fourth proportional to 211,913.33, 317,861.78 and 71,671.95 is: 107,505.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,913.33 : 317,861.78 = 71,671.95 : x
  2. Step 2: Convert to fraction form
    211,913.33/317,861.78 = 71,671.95/x
  3. Step 3: Cross multiply
    211,913.33x = 317,861.78 × 71,671.95
  4. Step 4: Simplify right side
    211,913.33x = 22,781,773,244.71
  5. Step 5: Solve for x
    x = 22,781,773,244.71/211,913.33
  6. Step 6: Final answer
    x = 107,505.15

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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.