Home / 190,391.36-262,736.16-105,507.68

Finding the Fourth Proportional to 190,391.36, 262,736.16 and 105,507.68

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Solution

The fourth proportional to 190,391.36, 262,736.16 and 105,507.68 is: 145,598.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,391.36 : 262,736.16 = 105,507.68 : x
  2. Step 2: Convert to fraction form
    190,391.36/262,736.16 = 105,507.68/x
  3. Step 3: Cross multiply
    190,391.36x = 262,736.16 × 105,507.68
  4. Step 4: Simplify right side
    190,391.36x = 27,720,682,693.71
  5. Step 5: Solve for x
    x = 27,720,682,693.71/190,391.36
  6. Step 6: Final answer
    x = 145,598.43

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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.