Home / 190,054.06-262,273.08-105,175.78

Finding the Fourth Proportional to 190,054.06, 262,273.08 and 105,175.78

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Solution

The fourth proportional to 190,054.06, 262,273.08 and 105,175.78 is: 145,141.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,054.06 : 262,273.08 = 105,175.78 : x
  2. Step 2: Convert to fraction form
    190,054.06/262,273.08 = 105,175.78/x
  3. Step 3: Cross multiply
    190,054.06x = 262,273.08 × 105,175.78
  4. Step 4: Simplify right side
    190,054.06x = 27,584,775,762.00
  5. Step 5: Solve for x
    x = 27,584,775,762.00/190,054.06
  6. Step 6: Final answer
    x = 145,141.73

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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.