Finding the Fourth Proportional to 112,362.78, 168,478.96 and 53,197.95
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Solution
The fourth proportional to 112,362.78, 168,478.96 and 53,197.95 is: 79,766.05
Step by Step Solution
- Step 1: Write the proportion equation
112,362.78 : 168,478.96 = 53,197.95 : x - Step 2: Convert to fraction form
112,362.78/168,478.96 = 53,197.95/x - Step 3: Cross multiply
112,362.78x = 168,478.96 × 53,197.95 - Step 4: Simplify right side
112,362.78x = 8,962,735,290.13 - Step 5: Solve for x
x = 8,962,735,290.13/112,362.78 - Step 6: Final answer
x = 79,766.05
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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.