Home / 109,916.09-164,893.88-38,879.90

Finding the Fourth Proportional to 109,916.09, 164,893.88 and 38,879.90

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Solution

The fourth proportional to 109,916.09, 164,893.88 and 38,879.90 is: 58,326.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,916.09 : 164,893.88 = 38,879.90 : x
  2. Step 2: Convert to fraction form
    109,916.09/164,893.88 = 38,879.90/x
  3. Step 3: Cross multiply
    109,916.09x = 164,893.88 × 38,879.90
  4. Step 4: Simplify right side
    109,916.09x = 6,411,057,237.39
  5. Step 5: Solve for x
    x = 6,411,057,237.39/109,916.09
  6. Step 6: Final answer
    x = 58,326.83

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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.