Home / 276,708.08-415,120.44-89,705

Finding the Fourth Proportional to 276,708.08, 415,120.44 and 89,705

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Solution

The fourth proportional to 276,708.08, 415,120.44 and 89,705 is: 134,576.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,708.08 : 415,120.44 = 89,705 : x
  2. Step 2: Convert to fraction form
    276,708.08/415,120.44 = 89,705/x
  3. Step 3: Cross multiply
    276,708.08x = 415,120.44 × 89,705
  4. Step 4: Simplify right side
    276,708.08x = 37,238,379,070.20
  5. Step 5: Solve for x
    x = 37,238,379,070.20/276,708.08
  6. Step 6: Final answer
    x = 134,576.41

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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.