Home / 109,860.45-164,776.09-30,981.03

Finding the Fourth Proportional to 109,860.45, 164,776.09 and 30,981.03

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Solution

The fourth proportional to 109,860.45, 164,776.09 and 30,981.03 is: 46,467.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,860.45 : 164,776.09 = 30,981.03 : x
  2. Step 2: Convert to fraction form
    109,860.45/164,776.09 = 30,981.03/x
  3. Step 3: Cross multiply
    109,860.45x = 164,776.09 × 30,981.03
  4. Step 4: Simplify right side
    109,860.45x = 5,104,932,987.57
  5. Step 5: Solve for x
    x = 5,104,932,987.57/109,860.45
  6. Step 6: Final answer
    x = 46,467.43

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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.