Finding the Fourth Proportional to 140,655.24, 194,104.76 and 76,998.96
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Solution
The fourth proportional to 140,655.24, 194,104.76 and 76,998.96 is: 106,258.85
Step by Step Solution
- Step 1: Write the proportion equation
140,655.24 : 194,104.76 = 76,998.96 : x - Step 2: Convert to fraction form
140,655.24/194,104.76 = 76,998.96/x - Step 3: Cross multiply
140,655.24x = 194,104.76 × 76,998.96 - Step 4: Simplify right side
140,655.24x = 14,945,864,266.05 - Step 5: Solve for x
x = 14,945,864,266.05/140,655.24 - Step 6: Final answer
x = 106,258.85
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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.