Home / 222,137.28-306,557.10-121,535.28

Finding the Fourth Proportional to 222,137.28, 306,557.10 and 121,535.28

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Solution

The fourth proportional to 222,137.28, 306,557.10 and 121,535.28 is: 167,722.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,137.28 : 306,557.10 = 121,535.28 : x
  2. Step 2: Convert to fraction form
    222,137.28/306,557.10 = 121,535.28/x
  3. Step 3: Cross multiply
    222,137.28x = 306,557.10 × 121,535.28
  4. Step 4: Simplify right side
    222,137.28x = 37,257,502,984.49
  5. Step 5: Solve for x
    x = 37,257,502,984.49/222,137.28
  6. Step 6: Final answer
    x = 167,722.87

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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.