Home / 189,216.54-261,182.07-112,759.63

Finding the Fourth Proportional to 189,216.54, 261,182.07 and 112,759.63

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Solution

The fourth proportional to 189,216.54, 261,182.07 and 112,759.63 is: 155,645.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,216.54 : 261,182.07 = 112,759.63 : x
  2. Step 2: Convert to fraction form
    189,216.54/261,182.07 = 112,759.63/x
  3. Step 3: Cross multiply
    189,216.54x = 261,182.07 × 112,759.63
  4. Step 4: Simplify right side
    189,216.54x = 29,450,792,922.88
  5. Step 5: Solve for x
    x = 29,450,792,922.88/189,216.54
  6. Step 6: Final answer
    x = 155,645.98

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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.