Finding the Fourth Proportional to 115,357.96, 159,193.98 and 65,056.96
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Solution
The fourth proportional to 115,357.96, 159,193.98 and 65,056.96 is: 89,778.60
Step by Step Solution
- Step 1: Write the proportion equation
115,357.96 : 159,193.98 = 65,056.96 : x - Step 2: Convert to fraction form
115,357.96/159,193.98 = 65,056.96/x - Step 3: Cross multiply
115,357.96x = 159,193.98 × 65,056.96 - Step 4: Simplify right side
115,357.96x = 10,356,676,389.10 - Step 5: Solve for x
x = 10,356,676,389.10/115,357.96 - Step 6: Final answer
x = 89,778.60
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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.