Home / 222,389.28-306,895.05-120,412.17

Finding the Fourth Proportional to 222,389.28, 306,895.05 and 120,412.17

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Solution

The fourth proportional to 222,389.28, 306,895.05 and 120,412.17 is: 166,167.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,389.28 : 306,895.05 = 120,412.17 : x
  2. Step 2: Convert to fraction form
    222,389.28/306,895.05 = 120,412.17/x
  3. Step 3: Cross multiply
    222,389.28x = 306,895.05 × 120,412.17
  4. Step 4: Simplify right side
    222,389.28x = 36,953,898,932.76
  5. Step 5: Solve for x
    x = 36,953,898,932.76/222,389.28
  6. Step 6: Final answer
    x = 166,167.63

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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.