Home / 212,326.76-318,391.73-79,171.27

Finding the Fourth Proportional to 212,326.76, 318,391.73 and 79,171.27

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Solution

The fourth proportional to 212,326.76, 318,391.73 and 79,171.27 is: 118,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,326.76 : 318,391.73 = 79,171.27 : x
  2. Step 2: Convert to fraction form
    212,326.76/318,391.73 = 79,171.27/x
  3. Step 3: Cross multiply
    212,326.76x = 318,391.73 × 79,171.27
  4. Step 4: Simplify right side
    212,326.76x = 25,207,476,429.76
  5. Step 5: Solve for x
    x = 25,207,476,429.76/212,326.76
  6. Step 6: Final answer
    x = 118,720.20

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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.