Finding the Fourth Proportional to 161,734.72, 242,638.99 and 49,430.91
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Solution
The fourth proportional to 161,734.72, 242,638.99 and 49,430.91 is: 74,157.65
Step by Step Solution
- Step 1: Write the proportion equation
161,734.72 : 242,638.99 = 49,430.91 : x - Step 2: Convert to fraction form
161,734.72/242,638.99 = 49,430.91/x - Step 3: Cross multiply
161,734.72x = 242,638.99 × 49,430.91 - Step 4: Simplify right side
161,734.72x = 11,993,866,077.18 - Step 5: Solve for x
x = 11,993,866,077.18/161,734.72 - Step 6: Final answer
x = 74,157.65
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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.