Home / 165,405.90-228,570.44-135,180.20

Finding the Fourth Proportional to 165,405.90, 228,570.44 and 135,180.20

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Solution

The fourth proportional to 165,405.90, 228,570.44 and 135,180.20 is: 186,802.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,405.90 : 228,570.44 = 135,180.20 : x
  2. Step 2: Convert to fraction form
    165,405.90/228,570.44 = 135,180.20/x
  3. Step 3: Cross multiply
    165,405.90x = 228,570.44 × 135,180.20
  4. Step 4: Simplify right side
    165,405.90x = 30,898,195,974.53
  5. Step 5: Solve for x
    x = 30,898,195,974.53/165,405.90
  6. Step 6: Final answer
    x = 186,802.26

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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.