Home / 189,557.64-261,647.44-116,982.72

Finding the Fourth Proportional to 189,557.64, 261,647.44 and 116,982.72

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Solution

The fourth proportional to 189,557.64, 261,647.44 and 116,982.72 is: 161,471.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,557.64 : 261,647.44 = 116,982.72 : x
  2. Step 2: Convert to fraction form
    189,557.64/261,647.44 = 116,982.72/x
  3. Step 3: Cross multiply
    189,557.64x = 261,647.44 × 116,982.72
  4. Step 4: Simplify right side
    189,557.64x = 30,608,229,212.24
  5. Step 5: Solve for x
    x = 30,608,229,212.24/189,557.64
  6. Step 6: Final answer
    x = 161,471.88

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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.