Finding the Fourth Proportional to 117,533.36, 162,084.84 and 77,175.92
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Solution
The fourth proportional to 117,533.36, 162,084.84 and 77,175.92 is: 106,429.75
Step by Step Solution
- Step 1: Write the proportion equation
117,533.36 : 162,084.84 = 77,175.92 : x - Step 2: Convert to fraction form
117,533.36/162,084.84 = 77,175.92/x - Step 3: Cross multiply
117,533.36x = 162,084.84 × 77,175.92 - Step 4: Simplify right side
117,533.36x = 12,509,046,645.05 - Step 5: Solve for x
x = 12,509,046,645.05/117,533.36 - Step 6: Final answer
x = 106,429.75
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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.