Finding the Fourth Proportional to 134,772.80, 201,770.40 and 82,284.80
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Solution
The fourth proportional to 134,772.80, 201,770.40 and 82,284.80 is: 123,189.82
Step by Step Solution
- Step 1: Write the proportion equation
134,772.80 : 201,770.40 = 82,284.80 : x - Step 2: Convert to fraction form
134,772.80/201,770.40 = 82,284.80/x - Step 3: Cross multiply
134,772.80x = 201,770.40 × 82,284.80 - Step 4: Simplify right side
134,772.80x = 16,602,637,009.92 - Step 5: Solve for x
x = 16,602,637,009.92/134,772.80 - Step 6: Final answer
x = 123,189.82
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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.