Home / 201,944.80-302,828.64-68,788.36

Finding the Fourth Proportional to 201,944.80, 302,828.64 and 68,788.36

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Solution

The fourth proportional to 201,944.80, 302,828.64 and 68,788.36 is: 103,152.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,944.80 : 302,828.64 = 68,788.36 : x
  2. Step 2: Convert to fraction form
    201,944.80/302,828.64 = 68,788.36/x
  3. Step 3: Cross multiply
    201,944.80x = 302,828.64 × 68,788.36
  4. Step 4: Simplify right side
    201,944.80x = 20,831,085,506.63
  5. Step 5: Solve for x
    x = 20,831,085,506.63/201,944.80
  6. Step 6: Final answer
    x = 103,152.37

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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.