Finding the Fourth Proportional to 148,316.25, 204,674.79 and 80,331.53
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Solution
The fourth proportional to 148,316.25, 204,674.79 and 80,331.53 is: 110,856.63
Step by Step Solution
- Step 1: Write the proportion equation
148,316.25 : 204,674.79 = 80,331.53 : x - Step 2: Convert to fraction form
148,316.25/204,674.79 = 80,331.53/x - Step 3: Cross multiply
148,316.25x = 204,674.79 × 80,331.53 - Step 4: Simplify right side
148,316.25x = 16,441,838,521.44 - Step 5: Solve for x
x = 16,441,838,521.44/148,316.25 - Step 6: Final answer
x = 110,856.63
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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.