Home / 112,538.05-155,296.24-61,540.63

Finding the Fourth Proportional to 112,538.05, 155,296.24 and 61,540.63

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Solution

The fourth proportional to 112,538.05, 155,296.24 and 61,540.63 is: 84,922.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,538.05 : 155,296.24 = 61,540.63 : x
  2. Step 2: Convert to fraction form
    112,538.05/155,296.24 = 61,540.63/x
  3. Step 3: Cross multiply
    112,538.05x = 155,296.24 × 61,540.63
  4. Step 4: Simplify right side
    112,538.05x = 9,557,028,446.23
  5. Step 5: Solve for x
    x = 9,557,028,446.23/112,538.05
  6. Step 6: Final answer
    x = 84,922.64

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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.