Home / 115,910.30-173,537.40-102,788.30

Finding the Fourth Proportional to 115,910.30, 173,537.40 and 102,788.30

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Solution

The fourth proportional to 115,910.30, 173,537.40 and 102,788.30 is: 153,891.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,910.30 : 173,537.40 = 102,788.30 : x
  2. Step 2: Convert to fraction form
    115,910.30/173,537.40 = 102,788.30/x
  3. Step 3: Cross multiply
    115,910.30x = 173,537.40 × 102,788.30
  4. Step 4: Simplify right side
    115,910.30x = 17,837,614,332.42
  5. Step 5: Solve for x
    x = 17,837,614,332.42/115,910.30
  6. Step 6: Final answer
    x = 153,891.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.