Finding the Fourth Proportional to 154,869.03, 213,645.60 and 98,181.99
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Solution
The fourth proportional to 154,869.03, 213,645.60 and 98,181.99 is: 135,444.45
Step by Step Solution
- Step 1: Write the proportion equation
154,869.03 : 213,645.60 = 98,181.99 : x - Step 2: Convert to fraction form
154,869.03/213,645.60 = 98,181.99/x - Step 3: Cross multiply
154,869.03x = 213,645.60 × 98,181.99 - Step 4: Simplify right side
154,869.03x = 20,976,150,162.74 - Step 5: Solve for x
x = 20,976,150,162.74/154,869.03 - Step 6: Final answer
x = 135,444.45
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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.