Home / 129,861.90-194,792.85-73,874.70

Finding the Fourth Proportional to 129,861.90, 194,792.85 and 73,874.70

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Solution

The fourth proportional to 129,861.90, 194,792.85 and 73,874.70 is: 110,812.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,861.90 : 194,792.85 = 73,874.70 : x
  2. Step 2: Convert to fraction form
    129,861.90/194,792.85 = 73,874.70/x
  3. Step 3: Cross multiply
    129,861.90x = 194,792.85 × 73,874.70
  4. Step 4: Simplify right side
    129,861.90x = 14,390,263,355.90
  5. Step 5: Solve for x
    x = 14,390,263,355.90/129,861.90
  6. Step 6: Final answer
    x = 110,812.05

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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.