Finding the Fourth Proportional to 128,548.08, 192,792.96 and 45,442.08
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Solution
The fourth proportional to 128,548.08, 192,792.96 and 45,442.08 is: 68,152.81
Step by Step Solution
- Step 1: Write the proportion equation
128,548.08 : 192,792.96 = 45,442.08 : x - Step 2: Convert to fraction form
128,548.08/192,792.96 = 45,442.08/x - Step 3: Cross multiply
128,548.08x = 192,792.96 × 45,442.08 - Step 4: Simplify right side
128,548.08x = 8,760,913,111.76 - Step 5: Solve for x
x = 8,760,913,111.76/128,548.08 - Step 6: Final answer
x = 68,152.81
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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.