Home / 190,971-263,539.98-106,105.68

Finding the Fourth Proportional to 190,971, 263,539.98 and 106,105.68

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Solution

The fourth proportional to 190,971, 263,539.98 and 106,105.68 is: 146,425.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,971 : 263,539.98 = 106,105.68 : x
  2. Step 2: Convert to fraction form
    190,971/263,539.98 = 106,105.68/x
  3. Step 3: Cross multiply
    190,971x = 263,539.98 × 106,105.68
  4. Step 4: Simplify right side
    190,971x = 27,963,088,785.09
  5. Step 5: Solve for x
    x = 27,963,088,785.09/190,971
  6. Step 6: Final answer
    x = 146,425.84

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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.