Home / 190,697.79-263,162.94-105,828.51

Finding the Fourth Proportional to 190,697.79, 263,162.94 and 105,828.51

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Solution

The fourth proportional to 190,697.79, 263,162.94 and 105,828.51 is: 146,043.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,697.79 : 263,162.94 = 105,828.51 : x
  2. Step 2: Convert to fraction form
    190,697.79/263,162.94 = 105,828.51/x
  3. Step 3: Cross multiply
    190,697.79x = 263,162.94 × 105,828.51
  4. Step 4: Simplify right side
    190,697.79x = 27,850,141,827.42
  5. Step 5: Solve for x
    x = 27,850,141,827.42/190,697.79
  6. Step 6: Final answer
    x = 146,043.34

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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.