Home / 212,190.36-318,324.83-70,045.53

Finding the Fourth Proportional to 212,190.36, 318,324.83 and 70,045.53

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Solution

The fourth proportional to 212,190.36, 318,324.83 and 70,045.53 is: 105,081.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,190.36 : 318,324.83 = 70,045.53 : x
  2. Step 2: Convert to fraction form
    212,190.36/318,324.83 = 70,045.53/x
  3. Step 3: Cross multiply
    212,190.36x = 318,324.83 × 70,045.53
  4. Step 4: Simplify right side
    212,190.36x = 22,297,232,400.44
  5. Step 5: Solve for x
    x = 22,297,232,400.44/212,190.36
  6. Step 6: Final answer
    x = 105,081.27

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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.