Finding the Fourth Proportional to 128,625.97, 192,957.64 and 39,886.63
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Solution
The fourth proportional to 128,625.97, 192,957.64 and 39,886.63 is: 59,835.74
Step by Step Solution
- Step 1: Write the proportion equation
128,625.97 : 192,957.64 = 39,886.63 : x - Step 2: Convert to fraction form
128,625.97/192,957.64 = 39,886.63/x - Step 3: Cross multiply
128,625.97x = 192,957.64 × 39,886.63 - Step 4: Simplify right side
128,625.97x = 7,696,429,992.35 - Step 5: Solve for x
x = 7,696,429,992.35/128,625.97 - Step 6: Final answer
x = 59,835.74
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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.