Home / 188,309.23-259,865.85-102,267.61

Finding the Fourth Proportional to 188,309.23, 259,865.85 and 102,267.61

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Solution

The fourth proportional to 188,309.23, 259,865.85 and 102,267.61 is: 141,128.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,309.23 : 259,865.85 = 102,267.61 : x
  2. Step 2: Convert to fraction form
    188,309.23/259,865.85 = 102,267.61/x
  3. Step 3: Cross multiply
    188,309.23x = 259,865.85 × 102,267.61
  4. Step 4: Simplify right side
    188,309.23x = 26,575,859,400.12
  5. Step 5: Solve for x
    x = 26,575,859,400.12/188,309.23
  6. Step 6: Final answer
    x = 141,128.82

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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.