Finding the Fourth Proportional to 122,037.36, 168,427.44 and 68,342.88
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Solution
The fourth proportional to 122,037.36, 168,427.44 and 68,342.88 is: 94,322.07
Step by Step Solution
- Step 1: Write the proportion equation
122,037.36 : 168,427.44 = 68,342.88 : x - Step 2: Convert to fraction form
122,037.36/168,427.44 = 68,342.88/x - Step 3: Cross multiply
122,037.36x = 168,427.44 × 68,342.88 - Step 4: Simplify right side
122,037.36x = 11,510,816,320.63 - Step 5: Solve for x
x = 11,510,816,320.63/122,037.36 - Step 6: Final answer
x = 94,322.07
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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.