Home / 190,721.08-263,186.22-105,837.40

Finding the Fourth Proportional to 190,721.08, 263,186.22 and 105,837.40

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Solution

The fourth proportional to 190,721.08, 263,186.22 and 105,837.40 is: 146,050.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,721.08 : 263,186.22 = 105,837.40 : x
  2. Step 2: Convert to fraction form
    190,721.08/263,186.22 = 105,837.40/x
  3. Step 3: Cross multiply
    190,721.08x = 263,186.22 × 105,837.40
  4. Step 4: Simplify right side
    190,721.08x = 27,854,945,240.63
  5. Step 5: Solve for x
    x = 27,854,945,240.63/190,721.08
  6. Step 6: Final answer
    x = 146,050.69

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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.