Home / 111,121.44-153,356.56-63,378.42

Finding the Fourth Proportional to 111,121.44, 153,356.56 and 63,378.42

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Solution

The fourth proportional to 111,121.44, 153,356.56 and 63,378.42 is: 87,467.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,121.44 : 153,356.56 = 63,378.42 : x
  2. Step 2: Convert to fraction form
    111,121.44/153,356.56 = 63,378.42/x
  3. Step 3: Cross multiply
    111,121.44x = 153,356.56 × 63,378.42
  4. Step 4: Simplify right side
    111,121.44x = 9,719,496,469.44
  5. Step 5: Solve for x
    x = 9,719,496,469.44/111,121.44
  6. Step 6: Final answer
    x = 87,467.34

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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.