Finding the Fourth Proportional to 133,228.36, 183,852.96 and 72,797.68
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Solution
The fourth proportional to 133,228.36, 183,852.96 and 72,797.68 is: 100,459.61
Step by Step Solution
- Step 1: Write the proportion equation
133,228.36 : 183,852.96 = 72,797.68 : x - Step 2: Convert to fraction form
133,228.36/183,852.96 = 72,797.68/x - Step 3: Cross multiply
133,228.36x = 183,852.96 × 72,797.68 - Step 4: Simplify right side
133,228.36x = 13,384,068,949.13 - Step 5: Solve for x
x = 13,384,068,949.13/133,228.36 - Step 6: Final answer
x = 100,459.61
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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.