Home / 190,723.08-263,188.98-105,839.40

Finding the Fourth Proportional to 190,723.08, 263,188.98 and 105,839.40

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Solution

The fourth proportional to 190,723.08, 263,188.98 and 105,839.40 is: 146,053.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,723.08 : 263,188.98 = 105,839.40 : x
  2. Step 2: Convert to fraction form
    190,723.08/263,188.98 = 105,839.40/x
  3. Step 3: Cross multiply
    190,723.08x = 263,188.98 × 105,839.40
  4. Step 4: Simplify right side
    190,723.08x = 27,855,763,729.81
  5. Step 5: Solve for x
    x = 27,855,763,729.81/190,723.08
  6. Step 6: Final answer
    x = 146,053.45

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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.