Finding the Fourth Proportional to 90,293.70, 135,315.99 and 68,082.67
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Solution
The fourth proportional to 90,293.70, 135,315.99 and 68,082.67 is: 102,030.08
Step by Step Solution
- Step 1: Write the proportion equation
90,293.70 : 135,315.99 = 68,082.67 : x - Step 2: Convert to fraction form
90,293.70/135,315.99 = 68,082.67/x - Step 3: Cross multiply
90,293.70x = 135,315.99 × 68,082.67 - Step 4: Simplify right side
90,293.70x = 9,212,673,216.31 - Step 5: Solve for x
x = 9,212,673,216.31/90,293.70 - Step 6: Final answer
x = 102,030.08
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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.