Finding the Fourth Proportional to 122,045.10, 183,175.65 and 72,062.70
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Solution
The fourth proportional to 122,045.10, 183,175.65 and 72,062.70 is: 108,157.82
Step by Step Solution
- Step 1: Write the proportion equation
122,045.10 : 183,175.65 = 72,062.70 : x - Step 2: Convert to fraction form
122,045.10/183,175.65 = 72,062.70/x - Step 3: Cross multiply
122,045.10x = 183,175.65 × 72,062.70 - Step 4: Simplify right side
122,045.10x = 13,200,131,913.26 - Step 5: Solve for x
x = 13,200,131,913.26/122,045.10 - Step 6: Final answer
x = 108,157.82
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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.