Home / 222,095.87-306,491.39-120,121.45

Finding the Fourth Proportional to 222,095.87, 306,491.39 and 120,121.45

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Solution

The fourth proportional to 222,095.87, 306,491.39 and 120,121.45 is: 165,767.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,095.87 : 306,491.39 = 120,121.45 : x
  2. Step 2: Convert to fraction form
    222,095.87/306,491.39 = 120,121.45/x
  3. Step 3: Cross multiply
    222,095.87x = 306,491.39 × 120,121.45
  4. Step 4: Simplify right side
    222,095.87x = 36,816,189,938.62
  5. Step 5: Solve for x
    x = 36,816,189,938.62/222,095.87
  6. Step 6: Final answer
    x = 165,767.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.