Home / 201,409.36-301,917-83,180.32

Finding the Fourth Proportional to 201,409.36, 301,917 and 83,180.32

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Solution

The fourth proportional to 201,409.36, 301,917 and 83,180.32 is: 124,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,409.36 : 301,917 = 83,180.32 : x
  2. Step 2: Convert to fraction form
    201,409.36/301,917 = 83,180.32/x
  3. Step 3: Cross multiply
    201,409.36x = 301,917 × 83,180.32
  4. Step 4: Simplify right side
    201,409.36x = 25,113,552,673.44
  5. Step 5: Solve for x
    x = 25,113,552,673.44/201,409.36
  6. Step 6: Final answer
    x = 124,689.10

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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.