Home / 109,927.40-164,372.70-81,933.80

Finding the Fourth Proportional to 109,927.40, 164,372.70 and 81,933.80

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Solution

The fourth proportional to 109,927.40, 164,372.70 and 81,933.80 is: 122,514.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,927.40 : 164,372.70 = 81,933.80 : x
  2. Step 2: Convert to fraction form
    109,927.40/164,372.70 = 81,933.80/x
  3. Step 3: Cross multiply
    109,927.40x = 164,372.70 × 81,933.80
  4. Step 4: Simplify right side
    109,927.40x = 13,467,679,927.26
  5. Step 5: Solve for x
    x = 13,467,679,927.26/109,927.40
  6. Step 6: Final answer
    x = 122,514.31

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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.