Finding the Fourth Proportional to 115,517.24, 159,365.58 and 77,725.88
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Solution
The fourth proportional to 115,517.24, 159,365.58 and 77,725.88 is: 107,229.28
Step by Step Solution
- Step 1: Write the proportion equation
115,517.24 : 159,365.58 = 77,725.88 : x - Step 2: Convert to fraction form
115,517.24/159,365.58 = 77,725.88/x - Step 3: Cross multiply
115,517.24x = 159,365.58 × 77,725.88 - Step 4: Simplify right side
115,517.24x = 12,386,829,947.21 - Step 5: Solve for x
x = 12,386,829,947.21/115,517.24 - Step 6: Final answer
x = 107,229.28
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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.