Finding the Fourth Proportional to 131,893.05, 181,988.45 and 73,750.84
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Solution
The fourth proportional to 131,893.05, 181,988.45 and 73,750.84 is: 101,762.76
Step by Step Solution
- Step 1: Write the proportion equation
131,893.05 : 181,988.45 = 73,750.84 : x - Step 2: Convert to fraction form
131,893.05/181,988.45 = 73,750.84/x - Step 3: Cross multiply
131,893.05x = 181,988.45 × 73,750.84 - Step 4: Simplify right side
131,893.05x = 13,421,801,193.10 - Step 5: Solve for x
x = 13,421,801,193.10/131,893.05 - Step 6: Final answer
x = 101,762.76
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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.