Finding the Fourth Proportional to 107,938.95, 161,890.20 and 29,035.62
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Solution
The fourth proportional to 107,938.95, 161,890.20 and 29,035.62 is: 43,548.53
Step by Step Solution
- Step 1: Write the proportion equation
107,938.95 : 161,890.20 = 29,035.62 : x - Step 2: Convert to fraction form
107,938.95/161,890.20 = 29,035.62/x - Step 3: Cross multiply
107,938.95x = 161,890.20 × 29,035.62 - Step 4: Simplify right side
107,938.95x = 4,700,582,328.92 - Step 5: Solve for x
x = 4,700,582,328.92/107,938.95 - Step 6: Final answer
x = 43,548.53
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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.