Home / 188,128.98-259,609.32-103,247.46

Finding the Fourth Proportional to 188,128.98, 259,609.32 and 103,247.46

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Solution

The fourth proportional to 188,128.98, 259,609.32 and 103,247.46 is: 142,476.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,128.98 : 259,609.32 = 103,247.46 : x
  2. Step 2: Convert to fraction form
    188,128.98/259,609.32 = 103,247.46/x
  3. Step 3: Cross multiply
    188,128.98x = 259,609.32 × 103,247.46
  4. Step 4: Simplify right side
    188,128.98x = 26,804,002,882.33
  5. Step 5: Solve for x
    x = 26,804,002,882.33/188,128.98
  6. Step 6: Final answer
    x = 142,476.74

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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.