Finding the Fourth Proportional to 135,033.36, 186,371.98 and 77,711.28
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Solution
The fourth proportional to 135,033.36, 186,371.98 and 77,711.28 is: 107,256.50
Step by Step Solution
- Step 1: Write the proportion equation
135,033.36 : 186,371.98 = 77,711.28 : x - Step 2: Convert to fraction form
135,033.36/186,371.98 = 77,711.28/x - Step 3: Cross multiply
135,033.36x = 186,371.98 × 77,711.28 - Step 4: Simplify right side
135,033.36x = 14,483,205,121.93 - Step 5: Solve for x
x = 14,483,205,121.93/135,033.36 - Step 6: Final answer
x = 107,256.50
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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.