Finding the Fourth Proportional to 148,639.92, 205,151.40 and 88,243.68
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Solution
The fourth proportional to 148,639.92, 205,151.40 and 88,243.68 is: 121,793.09
Step by Step Solution
- Step 1: Write the proportion equation
148,639.92 : 205,151.40 = 88,243.68 : x - Step 2: Convert to fraction form
148,639.92/205,151.40 = 88,243.68/x - Step 3: Cross multiply
148,639.92x = 205,151.40 × 88,243.68 - Step 4: Simplify right side
148,639.92x = 18,103,314,493.15 - Step 5: Solve for x
x = 18,103,314,493.15/148,639.92 - Step 6: Final answer
x = 121,793.09
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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.