Finding the Fourth Proportional to 140,094.68, 193,331.30 and 76,433.80
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Solution
The fourth proportional to 140,094.68, 193,331.30 and 76,433.80 is: 105,478.99
Step by Step Solution
- Step 1: Write the proportion equation
140,094.68 : 193,331.30 = 76,433.80 : x - Step 2: Convert to fraction form
140,094.68/193,331.30 = 76,433.80/x - Step 3: Cross multiply
140,094.68x = 193,331.30 × 76,433.80 - Step 4: Simplify right side
140,094.68x = 14,777,045,917.94 - Step 5: Solve for x
x = 14,777,045,917.94/140,094.68 - Step 6: Final answer
x = 105,478.99
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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.