Finding the Fourth Proportional to 106,617.69, 147,131.40 and 58,869.99
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Solution
The fourth proportional to 106,617.69, 147,131.40 and 58,869.99 is: 81,240.03
Step by Step Solution
- Step 1: Write the proportion equation
106,617.69 : 147,131.40 = 58,869.99 : x - Step 2: Convert to fraction form
106,617.69/147,131.40 = 58,869.99/x - Step 3: Cross multiply
106,617.69x = 147,131.40 × 58,869.99 - Step 4: Simplify right side
106,617.69x = 8,661,624,046.69 - Step 5: Solve for x
x = 8,661,624,046.69/106,617.69 - Step 6: Final answer
x = 81,240.03
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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.