Home / 201,111.20-301,836.90-82,867.40

Finding the Fourth Proportional to 201,111.20, 301,836.90 and 82,867.40

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Solution

The fourth proportional to 201,111.20, 301,836.90 and 82,867.40 is: 124,371.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,111.20 : 301,836.90 = 82,867.40 : x
  2. Step 2: Convert to fraction form
    201,111.20/301,836.90 = 82,867.40/x
  3. Step 3: Cross multiply
    201,111.20x = 301,836.90 × 82,867.40
  4. Step 4: Simplify right side
    201,111.20x = 25,012,439,127.06
  5. Step 5: Solve for x
    x = 25,012,439,127.06/201,111.20
  6. Step 6: Final answer
    x = 124,371.19

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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.