Finding the Fourth Proportional to 150,521.40, 207,729.14 and 99,444.53
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Solution
The fourth proportional to 150,521.40, 207,729.14 and 99,444.53 is: 137,239.80
Step by Step Solution
- Step 1: Write the proportion equation
150,521.40 : 207,729.14 = 99,444.53 : x - Step 2: Convert to fraction form
150,521.40/207,729.14 = 99,444.53/x - Step 3: Cross multiply
150,521.40x = 207,729.14 × 99,444.53 - Step 4: Simplify right side
150,521.40x = 20,657,526,716.70 - Step 5: Solve for x
x = 20,657,526,716.70/150,521.40 - Step 6: Final answer
x = 137,239.80
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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.