Finding the Fourth Proportional to 157,271.09, 235,673.34 and 115,513.97
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Solution
The fourth proportional to 157,271.09, 235,673.34 and 115,513.97 is: 173,099.60
Step by Step Solution
- Step 1: Write the proportion equation
157,271.09 : 235,673.34 = 115,513.97 : x - Step 2: Convert to fraction form
157,271.09/235,673.34 = 115,513.97/x - Step 3: Cross multiply
157,271.09x = 235,673.34 × 115,513.97 - Step 4: Simplify right side
157,271.09x = 27,223,561,948.19 - Step 5: Solve for x
x = 27,223,561,948.19/157,271.09 - Step 6: Final answer
x = 173,099.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.