Finding the Fourth Proportional to 128,551.84, 192,779.82 and 44,288.44
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Solution
The fourth proportional to 128,551.84, 192,779.82 and 44,288.44 is: 66,416.14
Step by Step Solution
- Step 1: Write the proportion equation
128,551.84 : 192,779.82 = 44,288.44 : x - Step 2: Convert to fraction form
128,551.84/192,779.82 = 44,288.44/x - Step 3: Cross multiply
128,551.84x = 192,779.82 × 44,288.44 - Step 4: Simplify right side
128,551.84x = 8,537,917,491.28 - Step 5: Solve for x
x = 8,537,917,491.28/128,551.84 - Step 6: Final answer
x = 66,416.14
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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.