Finding the Fourth Proportional to 128,365.91, 192,594.48 and 57,282.09
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Solution
The fourth proportional to 128,365.91, 192,594.48 and 57,282.09 is: 85,943.48
Step by Step Solution
- Step 1: Write the proportion equation
128,365.91 : 192,594.48 = 57,282.09 : x - Step 2: Convert to fraction form
128,365.91/192,594.48 = 57,282.09/x - Step 3: Cross multiply
128,365.91x = 192,594.48 × 57,282.09 - Step 4: Simplify right side
128,365.91x = 11,032,213,883.14 - Step 5: Solve for x
x = 11,032,213,883.14/128,365.91 - Step 6: Final answer
x = 85,943.48
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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.