Finding the Fourth Proportional to 154,099.99, 212,657.35 and 86,116.94
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Solution
The fourth proportional to 154,099.99, 212,657.35 and 86,116.94 is: 118,841.02
Step by Step Solution
- Step 1: Write the proportion equation
154,099.99 : 212,657.35 = 86,116.94 : x - Step 2: Convert to fraction form
154,099.99/212,657.35 = 86,116.94/x - Step 3: Cross multiply
154,099.99x = 212,657.35 × 86,116.94 - Step 4: Simplify right side
154,099.99x = 18,313,400,250.51 - Step 5: Solve for x
x = 18,313,400,250.51/154,099.99 - Step 6: Final answer
x = 118,841.02
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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.