Home / 111,040.72-153,240.16-63,286.36

Finding the Fourth Proportional to 111,040.72, 153,240.16 and 63,286.36

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Solution

The fourth proportional to 111,040.72, 153,240.16 and 63,286.36 is: 87,337.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,040.72 : 153,240.16 = 63,286.36 : x
  2. Step 2: Convert to fraction form
    111,040.72/153,240.16 = 63,286.36/x
  3. Step 3: Cross multiply
    111,040.72x = 153,240.16 × 63,286.36
  4. Step 4: Simplify right side
    111,040.72x = 9,698,011,932.22
  5. Step 5: Solve for x
    x = 9,698,011,932.22/111,040.72
  6. Step 6: Final answer
    x = 87,337.44

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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.