Finding the Fourth Proportional to 150,914.21, 208,168.99 and 89,618.74
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Solution
The fourth proportional to 150,914.21, 208,168.99 and 89,618.74 is: 123,618.86
Step by Step Solution
- Step 1: Write the proportion equation
150,914.21 : 208,168.99 = 89,618.74 : x - Step 2: Convert to fraction form
150,914.21/208,168.99 = 89,618.74/x - Step 3: Cross multiply
150,914.21x = 208,168.99 × 89,618.74 - Step 4: Simplify right side
150,914.21x = 18,655,841,846.40 - Step 5: Solve for x
x = 18,655,841,846.40/150,914.21 - Step 6: Final answer
x = 123,618.86
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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.