Home / 190,401.36-262,749.84-105,517.68

Finding the Fourth Proportional to 190,401.36, 262,749.84 and 105,517.68

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Solution

The fourth proportional to 190,401.36, 262,749.84 and 105,517.68 is: 145,612.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,401.36 : 262,749.84 = 105,517.68 : x
  2. Step 2: Convert to fraction form
    190,401.36/262,749.84 = 105,517.68/x
  3. Step 3: Cross multiply
    190,401.36x = 262,749.84 × 105,517.68
  4. Step 4: Simplify right side
    190,401.36x = 27,724,753,537.17
  5. Step 5: Solve for x
    x = 27,724,753,537.17/190,401.36
  6. Step 6: Final answer
    x = 145,612.16

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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.