Home / 212,183.37-318,285-70,041.03

Finding the Fourth Proportional to 212,183.37, 318,285 and 70,041.03

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Solution

The fourth proportional to 212,183.37, 318,285 and 70,041.03 is: 105,064.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,183.37 : 318,285 = 70,041.03 : x
  2. Step 2: Convert to fraction form
    212,183.37/318,285 = 70,041.03/x
  3. Step 3: Cross multiply
    212,183.37x = 318,285 × 70,041.03
  4. Step 4: Simplify right side
    212,183.37x = 22,293,009,233.55
  5. Step 5: Solve for x
    x = 22,293,009,233.55/212,183.37
  6. Step 6: Final answer
    x = 105,064.83

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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.