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Finding the Fourth Proportional to 111,859.33, 154,365.90 and 61,558.33

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Solution

The fourth proportional to 111,859.33, 154,365.90 and 61,558.33 is: 84,950.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,859.33 : 154,365.90 = 61,558.33 : x
  2. Step 2: Convert to fraction form
    111,859.33/154,365.90 = 61,558.33/x
  3. Step 3: Cross multiply
    111,859.33x = 154,365.90 × 61,558.33
  4. Step 4: Simplify right side
    111,859.33x = 9,502,507,012.95
  5. Step 5: Solve for x
    x = 9,502,507,012.95/111,859.33
  6. Step 6: Final answer
    x = 84,950.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.