Home / 222,117.28-306,520.71-120,142.63

Finding the Fourth Proportional to 222,117.28, 306,520.71 and 120,142.63

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Solution

The fourth proportional to 222,117.28, 306,520.71 and 120,142.63 is: 165,796.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,117.28 : 306,520.71 = 120,142.63 : x
  2. Step 2: Convert to fraction form
    222,117.28/306,520.71 = 120,142.63/x
  3. Step 3: Cross multiply
    222,117.28x = 306,520.71 × 120,142.63
  4. Step 4: Simplify right side
    222,117.28x = 36,826,204,248.87
  5. Step 5: Solve for x
    x = 36,826,204,248.87/222,117.28
  6. Step 6: Final answer
    x = 165,796.21

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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.