Home / 109,623.80-164,435.70-105,015.80

Finding the Fourth Proportional to 109,623.80, 164,435.70 and 105,015.80

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Solution

The fourth proportional to 109,623.80, 164,435.70 and 105,015.80 is: 157,523.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,623.80 : 164,435.70 = 105,015.80 : x
  2. Step 2: Convert to fraction form
    109,623.80/164,435.70 = 105,015.80/x
  3. Step 3: Cross multiply
    109,623.80x = 164,435.70 × 105,015.80
  4. Step 4: Simplify right side
    109,623.80x = 17,268,346,584.06
  5. Step 5: Solve for x
    x = 17,268,346,584.06/109,623.80
  6. Step 6: Final answer
    x = 157,523.70

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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.