Finding the Fourth Proportional to 128,442.47, 192,615.91 and 44,178.98
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Solution
The fourth proportional to 128,442.47, 192,615.91 and 44,178.98 is: 66,252.02
Step by Step Solution
- Step 1: Write the proportion equation
128,442.47 : 192,615.91 = 44,178.98 : x - Step 2: Convert to fraction form
128,442.47/192,615.91 = 44,178.98/x - Step 3: Cross multiply
128,442.47x = 192,615.91 × 44,178.98 - Step 4: Simplify right side
128,442.47x = 8,509,573,362.04 - Step 5: Solve for x
x = 8,509,573,362.04/128,442.47 - Step 6: Final answer
x = 66,252.02
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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.