Home / 190,686.25-263,147.07-105,803.92

Finding the Fourth Proportional to 190,686.25, 263,147.07 and 105,803.92

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Solution

The fourth proportional to 190,686.25, 263,147.07 and 105,803.92 is: 146,009.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,686.25 : 263,147.07 = 105,803.92 : x
  2. Step 2: Convert to fraction form
    190,686.25/263,147.07 = 105,803.92/x
  3. Step 3: Cross multiply
    190,686.25x = 263,147.07 × 105,803.92
  4. Step 4: Simplify right side
    190,686.25x = 27,841,991,542.51
  5. Step 5: Solve for x
    x = 27,841,991,542.51/190,686.25
  6. Step 6: Final answer
    x = 146,009.43

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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.