Finding the Fourth Proportional to 154,027.63, 212,544.26 and 86,038.66
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Solution
The fourth proportional to 154,027.63, 212,544.26 and 86,038.66 is: 118,725.60
Step by Step Solution
- Step 1: Write the proportion equation
154,027.63 : 212,544.26 = 86,038.66 : x - Step 2: Convert to fraction form
154,027.63/212,544.26 = 86,038.66/x - Step 3: Cross multiply
154,027.63x = 212,544.26 × 86,038.66 - Step 4: Simplify right side
154,027.63x = 18,287,023,321.09 - Step 5: Solve for x
x = 18,287,023,321.09/154,027.63 - Step 6: Final answer
x = 118,725.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.