Finding the Fourth Proportional to 98,863.99, 148,394.41 and 54,511.63
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Solution
The fourth proportional to 98,863.99, 148,394.41 and 54,511.63 is: 81,821.71
Step by Step Solution
- Step 1: Write the proportion equation
98,863.99 : 148,394.41 = 54,511.63 : x - Step 2: Convert to fraction form
98,863.99/148,394.41 = 54,511.63/x - Step 3: Cross multiply
98,863.99x = 148,394.41 × 54,511.63 - Step 4: Simplify right side
98,863.99x = 8,089,220,664.72 - Step 5: Solve for x
x = 8,089,220,664.72/98,863.99 - Step 6: Final answer
x = 81,821.71
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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.