Finding the Fourth Proportional to 115,460.40, 173,028.60 and 91,808.40
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Solution
The fourth proportional to 115,460.40, 173,028.60 and 91,808.40 is: 137,583.79
Step by Step Solution
- Step 1: Write the proportion equation
115,460.40 : 173,028.60 = 91,808.40 : x - Step 2: Convert to fraction form
115,460.40/173,028.60 = 91,808.40/x - Step 3: Cross multiply
115,460.40x = 173,028.60 × 91,808.40 - Step 4: Simplify right side
115,460.40x = 15,885,478,920.24 - Step 5: Solve for x
x = 15,885,478,920.24/115,460.40 - Step 6: Final answer
x = 137,583.79
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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.