Home / 188,128.45-259,617.26-112,676.95

Finding the Fourth Proportional to 188,128.45, 259,617.26 and 112,676.95

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Solution

The fourth proportional to 188,128.45, 259,617.26 and 112,676.95 is: 155,494.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,128.45 : 259,617.26 = 112,676.95 : x
  2. Step 2: Convert to fraction form
    188,128.45/259,617.26 = 112,676.95/x
  3. Step 3: Cross multiply
    188,128.45x = 259,617.26 × 112,676.95
  4. Step 4: Simplify right side
    188,128.45x = 29,252,879,162.69
  5. Step 5: Solve for x
    x = 29,252,879,162.69/188,128.45
  6. Step 6: Final answer
    x = 155,494.18

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1.5x scale

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.