Home / 189,958.32-262,143.72-105,076.56

Finding the Fourth Proportional to 189,958.32, 262,143.72 and 105,076.56

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Solution

The fourth proportional to 189,958.32, 262,143.72 and 105,076.56 is: 145,006.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,958.32 : 262,143.72 = 105,076.56 : x
  2. Step 2: Convert to fraction form
    189,958.32/262,143.72 = 105,076.56/x
  3. Step 3: Cross multiply
    189,958.32x = 262,143.72 × 105,076.56
  4. Step 4: Simplify right side
    189,958.32x = 27,545,160,323.20
  5. Step 5: Solve for x
    x = 27,545,160,323.20/189,958.32
  6. Step 6: Final answer
    x = 145,006.34

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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.