Home / 190,861.88-263,401.27-105,979.55

Finding the Fourth Proportional to 190,861.88, 263,401.27 and 105,979.55

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Solution

The fourth proportional to 190,861.88, 263,401.27 and 105,979.55 is: 146,258.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,861.88 : 263,401.27 = 105,979.55 : x
  2. Step 2: Convert to fraction form
    190,861.88/263,401.27 = 105,979.55/x
  3. Step 3: Cross multiply
    190,861.88x = 263,401.27 × 105,979.55
  4. Step 4: Simplify right side
    190,861.88x = 27,915,148,457.58
  5. Step 5: Solve for x
    x = 27,915,148,457.58/190,861.88
  6. Step 6: Final answer
    x = 146,258.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.