Finding the Fourth Proportional to 161,056.88, 241,536.09 and 76,772.60
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Solution
The fourth proportional to 161,056.88, 241,536.09 and 76,772.60 is: 115,135.43
Step by Step Solution
- Step 1: Write the proportion equation
161,056.88 : 241,536.09 = 76,772.60 : x - Step 2: Convert to fraction form
161,056.88/241,536.09 = 76,772.60/x - Step 3: Cross multiply
161,056.88x = 241,536.09 × 76,772.60 - Step 4: Simplify right side
161,056.88x = 18,543,353,623.13 - Step 5: Solve for x
x = 18,543,353,623.13/161,056.88 - Step 6: Final answer
x = 115,135.43
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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.