Home / 189,062.06-260,895.33-117,440.78

Finding the Fourth Proportional to 189,062.06, 260,895.33 and 117,440.78

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Solution

The fourth proportional to 189,062.06, 260,895.33 and 117,440.78 is: 162,061.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,062.06 : 260,895.33 = 117,440.78 : x
  2. Step 2: Convert to fraction form
    189,062.06/260,895.33 = 117,440.78/x
  3. Step 3: Cross multiply
    189,062.06x = 260,895.33 × 117,440.78
  4. Step 4: Simplify right side
    189,062.06x = 30,639,749,749.08
  5. Step 5: Solve for x
    x = 30,639,749,749.08/189,062.06
  6. Step 6: Final answer
    x = 162,061.87

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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.