Home / 109,415.08-164,131.09-41,979.40

Finding the Fourth Proportional to 109,415.08, 164,131.09 and 41,979.40

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Solution

The fourth proportional to 109,415.08, 164,131.09 and 41,979.40 is: 62,972.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,415.08 : 164,131.09 = 41,979.40 : x
  2. Step 2: Convert to fraction form
    109,415.08/164,131.09 = 41,979.40/x
  3. Step 3: Cross multiply
    109,415.08x = 164,131.09 × 41,979.40
  4. Step 4: Simplify right side
    109,415.08x = 6,890,124,164.27
  5. Step 5: Solve for x
    x = 6,890,124,164.27/109,415.08
  6. Step 6: Final answer
    x = 62,972.34

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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.