Finding the Fourth Proportional to 161,327.70, 241,991.55 and 91,343.70
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Solution
The fourth proportional to 161,327.70, 241,991.55 and 91,343.70 is: 137,015.55
Step by Step Solution
- Step 1: Write the proportion equation
161,327.70 : 241,991.55 = 91,343.70 : x - Step 2: Convert to fraction form
161,327.70/241,991.55 = 91,343.70/x - Step 3: Cross multiply
161,327.70x = 241,991.55 × 91,343.70 - Step 4: Simplify right side
161,327.70x = 22,104,403,545.74 - Step 5: Solve for x
x = 22,104,403,545.74/161,327.70 - Step 6: Final answer
x = 137,015.55
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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.