Home / 276,709.08-415,121.94-89,706

Finding the Fourth Proportional to 276,709.08, 415,121.94 and 89,706

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Solution

The fourth proportional to 276,709.08, 415,121.94 and 89,706 is: 134,577.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,709.08 : 415,121.94 = 89,706 : x
  2. Step 2: Convert to fraction form
    276,709.08/415,121.94 = 89,706/x
  3. Step 3: Cross multiply
    276,709.08x = 415,121.94 × 89,706
  4. Step 4: Simplify right side
    276,709.08x = 37,238,928,749.64
  5. Step 5: Solve for x
    x = 37,238,928,749.64/276,709.08
  6. Step 6: Final answer
    x = 134,577.91

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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.