Home / 201,139.02-301,741.20-68,027.40

Finding the Fourth Proportional to 201,139.02, 301,741.20 and 68,027.40

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Solution

The fourth proportional to 201,139.02, 301,741.20 and 68,027.40 is: 102,052.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,139.02 : 301,741.20 = 68,027.40 : x
  2. Step 2: Convert to fraction form
    201,139.02/301,741.20 = 68,027.40/x
  3. Step 3: Cross multiply
    201,139.02x = 301,741.20 × 68,027.40
  4. Step 4: Simplify right side
    201,139.02x = 20,526,669,308.88
  5. Step 5: Solve for x
    x = 20,526,669,308.88/201,139.02
  6. Step 6: Final answer
    x = 102,052.15

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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.