Finding the Fourth Proportional to 115,990.26, 160,058.98 and 68,234.38
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Solution
The fourth proportional to 115,990.26, 160,058.98 and 68,234.38 is: 94,158.99
Step by Step Solution
- Step 1: Write the proportion equation
115,990.26 : 160,058.98 = 68,234.38 : x - Step 2: Convert to fraction form
115,990.26/160,058.98 = 68,234.38/x - Step 3: Cross multiply
115,990.26x = 160,058.98 × 68,234.38 - Step 4: Simplify right side
115,990.26x = 10,921,525,263.73 - Step 5: Solve for x
x = 10,921,525,263.73/115,990.26 - Step 6: Final answer
x = 94,158.99
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1.5x scale
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.