Home / 111,635.37-154,052.15-66,317.49

Finding the Fourth Proportional to 111,635.37, 154,052.15 and 66,317.49

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Solution

The fourth proportional to 111,635.37, 154,052.15 and 66,317.49 is: 91,515.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,635.37 : 154,052.15 = 66,317.49 : x
  2. Step 2: Convert to fraction form
    111,635.37/154,052.15 = 66,317.49/x
  3. Step 3: Cross multiply
    111,635.37x = 154,052.15 × 66,317.49
  4. Step 4: Simplify right side
    111,635.37x = 10,216,351,585.52
  5. Step 5: Solve for x
    x = 10,216,351,585.52/111,635.37
  6. Step 6: Final answer
    x = 91,515.36

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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.