Finding the Fourth Proportional to 188,128.26, 259,615.68 and 102,085.06
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Solution
The fourth proportional to 188,128.26, 259,615.68 and 102,085.06 is: 140,876.66
Step by Step Solution
- Step 1: Write the proportion equation
188,128.26 : 259,615.68 = 102,085.06 : x - Step 2: Convert to fraction form
188,128.26/259,615.68 = 102,085.06/x - Step 3: Cross multiply
188,128.26x = 259,615.68 × 102,085.06 - Step 4: Simplify right side
188,128.26x = 26,502,881,652.88 - Step 5: Solve for x
x = 26,502,881,652.88/188,128.26 - Step 6: Final answer
x = 140,876.66
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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.