Home / 212,277.39-318,405.70-79,147.27

Finding the Fourth Proportional to 212,277.39, 318,405.70 and 79,147.27

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Solution

The fourth proportional to 212,277.39, 318,405.70 and 79,147.27 is: 118,717.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,277.39 : 318,405.70 = 79,147.27 : x
  2. Step 2: Convert to fraction form
    212,277.39/318,405.70 = 79,147.27/x
  3. Step 3: Cross multiply
    212,277.39x = 318,405.70 × 79,147.27
  4. Step 4: Simplify right side
    212,277.39x = 25,200,941,907.44
  5. Step 5: Solve for x
    x = 25,200,941,907.44/212,277.39
  6. Step 6: Final answer
    x = 118,717.03

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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.