Home / 189,913.72-284,886.78-49,672.12

Finding the Fourth Proportional to 189,913.72, 284,886.78 and 49,672.12

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Solution

The fourth proportional to 189,913.72, 284,886.78 and 49,672.12 is: 74,512.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,913.72 : 284,886.78 = 49,672.12 : x
  2. Step 2: Convert to fraction form
    189,913.72/284,886.78 = 49,672.12/x
  3. Step 3: Cross multiply
    189,913.72x = 284,886.78 × 49,672.12
  4. Step 4: Simplify right side
    189,913.72x = 14,150,930,322.57
  5. Step 5: Solve for x
    x = 14,150,930,322.57/189,913.72
  6. Step 6: Final answer
    x = 74,512.42

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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.