Home / 201,406.20-302,099.70-68,273.40

Finding the Fourth Proportional to 201,406.20, 302,099.70 and 68,273.40

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Solution

The fourth proportional to 201,406.20, 302,099.70 and 68,273.40 is: 102,406.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,406.20 : 302,099.70 = 68,273.40 : x
  2. Step 2: Convert to fraction form
    201,406.20/302,099.70 = 68,273.40/x
  3. Step 3: Cross multiply
    201,406.20x = 302,099.70 × 68,273.40
  4. Step 4: Simplify right side
    201,406.20x = 20,625,373,657.98
  5. Step 5: Solve for x
    x = 20,625,373,657.98/201,406.20
  6. Step 6: Final answer
    x = 102,406.85

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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.