Home / 111,198.06-153,455.94-63,455.84

Finding the Fourth Proportional to 111,198.06, 153,455.94 and 63,455.84

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Solution

The fourth proportional to 111,198.06, 153,455.94 and 63,455.84 is: 87,570.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,198.06 : 153,455.94 = 63,455.84 : x
  2. Step 2: Convert to fraction form
    111,198.06/153,455.94 = 63,455.84/x
  3. Step 3: Cross multiply
    111,198.06x = 153,455.94 × 63,455.84
  4. Step 4: Simplify right side
    111,198.06x = 9,737,675,575.69
  5. Step 5: Solve for x
    x = 9,737,675,575.69/111,198.06
  6. Step 6: Final answer
    x = 87,570.55

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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.