Finding the Fourth Proportional to 138,811.50, 191,473.74 and 102,475.80
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Solution
The fourth proportional to 138,811.50, 191,473.74 and 102,475.80 is: 141,353.02
Step by Step Solution
- Step 1: Write the proportion equation
138,811.50 : 191,473.74 = 102,475.80 : x - Step 2: Convert to fraction form
138,811.50/191,473.74 = 102,475.80/x - Step 3: Cross multiply
138,811.50x = 191,473.74 × 102,475.80 - Step 4: Simplify right side
138,811.50x = 19,621,424,685.49 - Step 5: Solve for x
x = 19,621,424,685.49/138,811.50 - Step 6: Final answer
x = 141,353.02
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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.