Finding the Fourth Proportional to 128,368.64, 192,577.08 and 58,252.88
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Solution
The fourth proportional to 128,368.64, 192,577.08 and 58,252.88 is: 87,390.27
Step by Step Solution
- Step 1: Write the proportion equation
128,368.64 : 192,577.08 = 58,252.88 : x - Step 2: Convert to fraction form
128,368.64/192,577.08 = 58,252.88/x - Step 3: Cross multiply
128,368.64x = 192,577.08 × 58,252.88 - Step 4: Simplify right side
128,368.64x = 11,218,169,531.99 - Step 5: Solve for x
x = 11,218,169,531.99/128,368.64 - Step 6: Final answer
x = 87,390.27
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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.