Home / 212,518.39-318,629.62-94,125.55

Finding the Fourth Proportional to 212,518.39, 318,629.62 and 94,125.55

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Solution

The fourth proportional to 212,518.39, 318,629.62 and 94,125.55 is: 141,122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,518.39 : 318,629.62 = 94,125.55 : x
  2. Step 2: Convert to fraction form
    212,518.39/318,629.62 = 94,125.55/x
  3. Step 3: Cross multiply
    212,518.39x = 318,629.62 × 94,125.55
  4. Step 4: Simplify right side
    212,518.39x = 29,991,188,228.79
  5. Step 5: Solve for x
    x = 29,991,188,228.79/212,518.39
  6. Step 6: Final answer
    x = 141,122.79

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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.