Home / 111,278.44-153,480.48-77,286.97

Finding the Fourth Proportional to 111,278.44, 153,480.48 and 77,286.97

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Solution

The fourth proportional to 111,278.44, 153,480.48 and 77,286.97 is: 106,597.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,278.44 : 153,480.48 = 77,286.97 : x
  2. Step 2: Convert to fraction form
    111,278.44/153,480.48 = 77,286.97/x
  3. Step 3: Cross multiply
    111,278.44x = 153,480.48 × 77,286.97
  4. Step 4: Simplify right side
    111,278.44x = 11,862,041,253.35
  5. Step 5: Solve for x
    x = 11,862,041,253.35/111,278.44
  6. Step 6: Final answer
    x = 106,597.84

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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.