Finding the Fourth Proportional to 161,450.71, 242,176.28 and 77,191.08
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Solution
The fourth proportional to 161,450.71, 242,176.28 and 77,191.08 is: 115,786.72
Step by Step Solution
- Step 1: Write the proportion equation
161,450.71 : 242,176.28 = 77,191.08 : x - Step 2: Convert to fraction form
161,450.71/242,176.28 = 77,191.08/x - Step 3: Cross multiply
161,450.71x = 242,176.28 × 77,191.08 - Step 4: Simplify right side
161,450.71x = 18,693,848,603.58 - Step 5: Solve for x
x = 18,693,848,603.58/161,450.71 - Step 6: Final answer
x = 115,786.72
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1.5x scale
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.