Home / 109,745.23-164,665.39-38,718.70

Finding the Fourth Proportional to 109,745.23, 164,665.39 and 38,718.70

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Solution

The fourth proportional to 109,745.23, 164,665.39 and 38,718.70 is: 58,094.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,745.23 : 164,665.39 = 38,718.70 : x
  2. Step 2: Convert to fraction form
    109,745.23/164,665.39 = 38,718.70/x
  3. Step 3: Cross multiply
    109,745.23x = 164,665.39 × 38,718.70
  4. Step 4: Simplify right side
    109,745.23x = 6,375,629,835.79
  5. Step 5: Solve for x
    x = 6,375,629,835.79/109,745.23
  6. Step 6: Final answer
    x = 58,094.82

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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.