Finding the Fourth Proportional to 115,855.18, 159,893.62 and 70,559.70
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Solution
The fourth proportional to 115,855.18, 159,893.62 and 70,559.70 is: 97,380.59
Step by Step Solution
- Step 1: Write the proportion equation
115,855.18 : 159,893.62 = 70,559.70 : x - Step 2: Convert to fraction form
115,855.18/159,893.62 = 70,559.70/x - Step 3: Cross multiply
115,855.18x = 159,893.62 × 70,559.70 - Step 4: Simplify right side
115,855.18x = 11,282,045,859.11 - Step 5: Solve for x
x = 11,282,045,859.11/115,855.18 - Step 6: Final answer
x = 97,380.59
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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.