Finding the Fourth Proportional to 144,463.81, 199,365.93 and 79,931.99
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Solution
The fourth proportional to 144,463.81, 199,365.93 and 79,931.99 is: 110,309.40
Step by Step Solution
- Step 1: Write the proportion equation
144,463.81 : 199,365.93 = 79,931.99 : x - Step 2: Convert to fraction form
144,463.81/199,365.93 = 79,931.99/x - Step 3: Cross multiply
144,463.81x = 199,365.93 × 79,931.99 - Step 4: Simplify right side
144,463.81x = 15,935,715,523.10 - Step 5: Solve for x
x = 15,935,715,523.10/144,463.81 - Step 6: Final answer
x = 110,309.40
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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.