Home / 190,800.33-263,291.27-105,910.71

Finding the Fourth Proportional to 190,800.33, 263,291.27 and 105,910.71

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Solution

The fourth proportional to 190,800.33, 263,291.27 and 105,910.71 is: 146,149.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,800.33 : 263,291.27 = 105,910.71 : x
  2. Step 2: Convert to fraction form
    190,800.33/263,291.27 = 105,910.71/x
  3. Step 3: Cross multiply
    190,800.33x = 263,291.27 × 105,910.71
  4. Step 4: Simplify right side
    190,800.33x = 27,885,364,812.95
  5. Step 5: Solve for x
    x = 27,885,364,812.95/190,800.33
  6. Step 6: Final answer
    x = 146,149.46

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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.