Home / 111,219.88-153,515.62-63,499.24

Finding the Fourth Proportional to 111,219.88, 153,515.62 and 63,499.24

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Solution

The fourth proportional to 111,219.88, 153,515.62 and 63,499.24 is: 87,647.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,219.88 : 153,515.62 = 63,499.24 : x
  2. Step 2: Convert to fraction form
    111,219.88/153,515.62 = 63,499.24/x
  3. Step 3: Cross multiply
    111,219.88x = 153,515.62 × 63,499.24
  4. Step 4: Simplify right side
    111,219.88x = 9,748,125,198.13
  5. Step 5: Solve for x
    x = 9,748,125,198.13/111,219.88
  6. Step 6: Final answer
    x = 87,647.33

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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.