Home / 109,738.90-164,509.80-43,224.40

Finding the Fourth Proportional to 109,738.90, 164,509.80 and 43,224.40

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Solution

The fourth proportional to 109,738.90, 164,509.80 and 43,224.40 is: 64,797.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,738.90 : 164,509.80 = 43,224.40 : x
  2. Step 2: Convert to fraction form
    109,738.90/164,509.80 = 43,224.40/x
  3. Step 3: Cross multiply
    109,738.90x = 164,509.80 × 43,224.40
  4. Step 4: Simplify right side
    109,738.90x = 7,110,837,399.12
  5. Step 5: Solve for x
    x = 7,110,837,399.12/109,738.90
  6. Step 6: Final answer
    x = 64,797.78

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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.