Finding the Fourth Proportional to 117,000.42, 161,460.62 and 66,023.99
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Solution
The fourth proportional to 117,000.42, 161,460.62 and 66,023.99 is: 91,113.12
Step by Step Solution
- Step 1: Write the proportion equation
117,000.42 : 161,460.62 = 66,023.99 : x - Step 2: Convert to fraction form
117,000.42/161,460.62 = 66,023.99/x - Step 3: Cross multiply
117,000.42x = 161,460.62 × 66,023.99 - Step 4: Simplify right side
117,000.42x = 10,660,273,222.85 - Step 5: Solve for x
x = 10,660,273,222.85/117,000.42 - Step 6: Final answer
x = 91,113.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.