Home / 189,623.28-284,481.68-56,503

Finding the Fourth Proportional to 189,623.28, 284,481.68 and 56,503

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Solution

The fourth proportional to 189,623.28, 284,481.68 and 56,503 is: 84,768.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,623.28 : 284,481.68 = 56,503 : x
  2. Step 2: Convert to fraction form
    189,623.28/284,481.68 = 56,503/x
  3. Step 3: Cross multiply
    189,623.28x = 284,481.68 × 56,503
  4. Step 4: Simplify right side
    189,623.28x = 16,074,068,365.04
  5. Step 5: Solve for x
    x = 16,074,068,365.04/189,623.28
  6. Step 6: Final answer
    x = 84,768.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.