Finding the Fourth Proportional to 107,964.11, 148,990.67 and 60,220.53
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Solution
The fourth proportional to 107,964.11, 148,990.67 and 60,220.53 is: 83,104.45
Step by Step Solution
- Step 1: Write the proportion equation
107,964.11 : 148,990.67 = 60,220.53 : x - Step 2: Convert to fraction form
107,964.11/148,990.67 = 60,220.53/x - Step 3: Cross multiply
107,964.11x = 148,990.67 × 60,220.53 - Step 4: Simplify right side
107,964.11x = 8,972,297,375.92 - Step 5: Solve for x
x = 8,972,297,375.92/107,964.11 - Step 6: Final answer
x = 83,104.45
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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.