Home / 201,916.40-302,874.60-68,764.55

Finding the Fourth Proportional to 201,916.40, 302,874.60 and 68,764.55

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Solution

The fourth proportional to 201,916.40, 302,874.60 and 68,764.55 is: 103,146.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,916.40 : 302,874.60 = 68,764.55 : x
  2. Step 2: Convert to fraction form
    201,916.40/302,874.60 = 68,764.55/x
  3. Step 3: Cross multiply
    201,916.40x = 302,874.60 × 68,764.55
  4. Step 4: Simplify right side
    201,916.40x = 20,827,035,575.43
  5. Step 5: Solve for x
    x = 20,827,035,575.43/201,916.40
  6. Step 6: Final answer
    x = 103,146.83

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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.