Home / 190,064.56-262,287.57-105,186.28

Finding the Fourth Proportional to 190,064.56, 262,287.57 and 105,186.28

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Solution

The fourth proportional to 190,064.56, 262,287.57 and 105,186.28 is: 145,156.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,064.56 : 262,287.57 = 105,186.28 : x
  2. Step 2: Convert to fraction form
    190,064.56/262,287.57 = 105,186.28/x
  3. Step 3: Cross multiply
    190,064.56x = 262,287.57 × 105,186.28
  4. Step 4: Simplify right side
    190,064.56x = 27,589,053,778.54
  5. Step 5: Solve for x
    x = 27,589,053,778.54/190,064.56
  6. Step 6: Final answer
    x = 145,156.22

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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.