Home / 212,369.04-318,222.99-79,213.50

Finding the Fourth Proportional to 212,369.04, 318,222.99 and 79,213.50

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Solution

The fourth proportional to 212,369.04, 318,222.99 and 79,213.50 is: 118,696.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,369.04 : 318,222.99 = 79,213.50 : x
  2. Step 2: Convert to fraction form
    212,369.04/318,222.99 = 79,213.50/x
  3. Step 3: Cross multiply
    212,369.04x = 318,222.99 × 79,213.50
  4. Step 4: Simplify right side
    212,369.04x = 25,207,556,818.37
  5. Step 5: Solve for x
    x = 25,207,556,818.37/212,369.04
  6. Step 6: Final answer
    x = 118,696.95

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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.