Home / 222,579.92-307,166.28-121,982.16

Finding the Fourth Proportional to 222,579.92, 307,166.28 and 121,982.16

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Solution

The fourth proportional to 222,579.92, 307,166.28 and 121,982.16 is: 168,338.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,579.92 : 307,166.28 = 121,982.16 : x
  2. Step 2: Convert to fraction form
    222,579.92/307,166.28 = 121,982.16/x
  3. Step 3: Cross multiply
    222,579.92x = 307,166.28 × 121,982.16
  4. Step 4: Simplify right side
    222,579.92x = 37,468,806,313.56
  5. Step 5: Solve for x
    x = 37,468,806,313.56/222,579.92
  6. Step 6: Final answer
    x = 168,338.66

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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.