Finding the Fourth Proportional to 161,469.74, 242,047.50 and 77,208.05
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Solution
The fourth proportional to 161,469.74, 242,047.50 and 77,208.05 is: 115,736.95
Step by Step Solution
- Step 1: Write the proportion equation
161,469.74 : 242,047.50 = 77,208.05 : x - Step 2: Convert to fraction form
161,469.74/242,047.50 = 77,208.05/x - Step 3: Cross multiply
161,469.74x = 242,047.50 × 77,208.05 - Step 4: Simplify right side
161,469.74x = 18,688,014,890.29 - Step 5: Solve for x
x = 18,688,014,890.29/161,469.74 - Step 6: Final answer
x = 115,736.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.