Finding the Fourth Proportional to 137,466.99, 189,701.35 and 80,102.72
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Solution
The fourth proportional to 137,466.99, 189,701.35 and 80,102.72 is: 110,539.95
Step by Step Solution
- Step 1: Write the proportion equation
137,466.99 : 189,701.35 = 80,102.72 : x - Step 2: Convert to fraction form
137,466.99/189,701.35 = 80,102.72/x - Step 3: Cross multiply
137,466.99x = 189,701.35 × 80,102.72 - Step 4: Simplify right side
137,466.99x = 15,195,594,396.67 - Step 5: Solve for x
x = 15,195,594,396.67/137,466.99 - Step 6: Final answer
x = 110,539.95
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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.