Home / 201,321.36-302,215.32-108,009.36

Finding the Fourth Proportional to 201,321.36, 302,215.32 and 108,009.36

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Solution

The fourth proportional to 201,321.36, 302,215.32 and 108,009.36 is: 162,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,321.36 : 302,215.32 = 108,009.36 : x
  2. Step 2: Convert to fraction form
    201,321.36/302,215.32 = 108,009.36/x
  3. Step 3: Cross multiply
    201,321.36x = 302,215.32 × 108,009.36
  4. Step 4: Simplify right side
    201,321.36x = 32,642,083,295.40
  5. Step 5: Solve for x
    x = 32,642,083,295.40/201,321.36
  6. Step 6: Final answer
    x = 162,139.20

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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.