Home / 165,356.74-228,305-110,990.45

Finding the Fourth Proportional to 165,356.74, 228,305 and 110,990.45

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Solution

The fourth proportional to 165,356.74, 228,305 and 110,990.45 is: 153,242.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,356.74 : 228,305 = 110,990.45 : x
  2. Step 2: Convert to fraction form
    165,356.74/228,305 = 110,990.45/x
  3. Step 3: Cross multiply
    165,356.74x = 228,305 × 110,990.45
  4. Step 4: Simplify right side
    165,356.74x = 25,339,674,687.25
  5. Step 5: Solve for x
    x = 25,339,674,687.25/165,356.74
  6. Step 6: Final answer
    x = 153,242.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.