Finding the Fourth Proportional to 115,943.90, 173,651.79 and 69,099.98
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Solution
The fourth proportional to 115,943.90, 173,651.79 and 69,099.98 is: 103,492.60
Step by Step Solution
- Step 1: Write the proportion equation
115,943.90 : 173,651.79 = 69,099.98 : x - Step 2: Convert to fraction form
115,943.90/173,651.79 = 69,099.98/x - Step 3: Cross multiply
115,943.90x = 173,651.79 × 69,099.98 - Step 4: Simplify right side
115,943.90x = 11,999,335,215.96 - Step 5: Solve for x
x = 11,999,335,215.96/115,943.90 - Step 6: Final answer
x = 103,492.60
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1.5x scale
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.