Finding the Fourth Proportional to 115,884.21, 159,922.62 and 70,564.08
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Solution
The fourth proportional to 115,884.21, 159,922.62 and 70,564.08 is: 97,379.90
Step by Step Solution
- Step 1: Write the proportion equation
115,884.21 : 159,922.62 = 70,564.08 : x - Step 2: Convert to fraction form
115,884.21/159,922.62 = 70,564.08/x - Step 3: Cross multiply
115,884.21x = 159,922.62 × 70,564.08 - Step 4: Simplify right side
115,884.21x = 11,284,792,551.49 - Step 5: Solve for x
x = 11,284,792,551.49/115,884.21 - Step 6: Final answer
x = 97,379.90
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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.