Home / 111,087.37-153,296.78-63,356.09

Finding the Fourth Proportional to 111,087.37, 153,296.78 and 63,356.09

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Solution

The fourth proportional to 111,087.37, 153,296.78 and 63,356.09 is: 87,429.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,087.37 : 153,296.78 = 63,356.09 : x
  2. Step 2: Convert to fraction form
    111,087.37/153,296.78 = 63,356.09/x
  3. Step 3: Cross multiply
    111,087.37x = 153,296.78 × 63,356.09
  4. Step 4: Simplify right side
    111,087.37x = 9,712,284,584.99
  5. Step 5: Solve for x
    x = 9,712,284,584.99/111,087.37
  6. Step 6: Final answer
    x = 87,429.24

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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.