Home / 111,329.48-153,633.78-61,028.36

Finding the Fourth Proportional to 111,329.48, 153,633.78 and 61,028.36

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Solution

The fourth proportional to 111,329.48, 153,633.78 and 61,028.36 is: 84,218.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,329.48 : 153,633.78 = 61,028.36 : x
  2. Step 2: Convert to fraction form
    111,329.48/153,633.78 = 61,028.36/x
  3. Step 3: Cross multiply
    111,329.48x = 153,633.78 × 61,028.36
  4. Step 4: Simplify right side
    111,329.48x = 9,376,017,634.00
  5. Step 5: Solve for x
    x = 9,376,017,634.00/111,329.48
  6. Step 6: Final answer
    x = 84,218.64

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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.