Finding the Fourth Proportional to 113,138.19, 169,477.65 and 53,075.88
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Solution
The fourth proportional to 113,138.19, 169,477.65 and 53,075.88 is: 79,506.09
Step by Step Solution
- Step 1: Write the proportion equation
113,138.19 : 169,477.65 = 53,075.88 : x - Step 2: Convert to fraction form
113,138.19/169,477.65 = 53,075.88/x - Step 3: Cross multiply
113,138.19x = 169,477.65 × 53,075.88 - Step 4: Simplify right side
113,138.19x = 8,995,175,414.08 - Step 5: Solve for x
x = 8,995,175,414.08/113,138.19 - Step 6: Final answer
x = 79,506.09
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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.