Finding the Fourth Proportional to 112,120.01, 154,724.99 and 61,819.05
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Solution
The fourth proportional to 112,120.01, 154,724.99 and 61,819.05 is: 85,309.94
Step by Step Solution
- Step 1: Write the proportion equation
112,120.01 : 154,724.99 = 61,819.05 : x - Step 2: Convert to fraction form
112,120.01/154,724.99 = 61,819.05/x - Step 3: Cross multiply
112,120.01x = 154,724.99 × 61,819.05 - Step 4: Simplify right side
112,120.01x = 9,564,951,583.96 - Step 5: Solve for x
x = 9,564,951,583.96/112,120.01 - Step 6: Final answer
x = 85,309.94
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1.5x scale
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.