Finding the Fourth Proportional to 158,176.36, 218,283.37 and 86,556.38
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Solution
The fourth proportional to 158,176.36, 218,283.37 and 86,556.38 is: 119,447.80
Step by Step Solution
- Step 1: Write the proportion equation
158,176.36 : 218,283.37 = 86,556.38 : x - Step 2: Convert to fraction form
158,176.36/218,283.37 = 86,556.38/x - Step 3: Cross multiply
158,176.36x = 218,283.37 × 86,556.38 - Step 4: Simplify right side
158,176.36x = 18,893,818,321.40 - Step 5: Solve for x
x = 18,893,818,321.40/158,176.36 - Step 6: Final answer
x = 119,447.80
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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.