Home / 111,910.36-154,436.88-61,609.36

Finding the Fourth Proportional to 111,910.36, 154,436.88 and 61,609.36

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Solution

The fourth proportional to 111,910.36, 154,436.88 and 61,609.36 is: 85,021.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,910.36 : 154,436.88 = 61,609.36 : x
  2. Step 2: Convert to fraction form
    111,910.36/154,436.88 = 61,609.36/x
  3. Step 3: Cross multiply
    111,910.36x = 154,436.88 × 61,609.36
  4. Step 4: Simplify right side
    111,910.36x = 9,514,757,337.20
  5. Step 5: Solve for x
    x = 9,514,757,337.20/111,910.36
  6. Step 6: Final answer
    x = 85,021.24

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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.