Home / 190,721.58-263,186.91-105,837.90

Finding the Fourth Proportional to 190,721.58, 263,186.91 and 105,837.90

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Solution

The fourth proportional to 190,721.58, 263,186.91 and 105,837.90 is: 146,051.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,721.58 : 263,186.91 = 105,837.90 : x
  2. Step 2: Convert to fraction form
    190,721.58/263,186.91 = 105,837.90/x
  3. Step 3: Cross multiply
    190,721.58x = 263,186.91 × 105,837.90
  4. Step 4: Simplify right side
    190,721.58x = 27,855,149,861.89
  5. Step 5: Solve for x
    x = 27,855,149,861.89/190,721.58
  6. Step 6: Final answer
    x = 146,051.38

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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.