Finding the Fourth Proportional to 107,811.40, 161,717.10 and 48,713.80
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Solution
The fourth proportional to 107,811.40, 161,717.10 and 48,713.80 is: 73,070.70
Step by Step Solution
- Step 1: Write the proportion equation
107,811.40 : 161,717.10 = 48,713.80 : x - Step 2: Convert to fraction form
107,811.40/161,717.10 = 48,713.80/x - Step 3: Cross multiply
107,811.40x = 161,717.10 × 48,713.80 - Step 4: Simplify right side
107,811.40x = 7,877,854,465.98 - Step 5: Solve for x
x = 7,877,854,465.98/107,811.40 - Step 6: Final answer
x = 73,070.70
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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.