Finding the Fourth Proportional to 126,730.50, 174,885.36 and 69,369.84
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Solution
The fourth proportional to 126,730.50, 174,885.36 and 69,369.84 is: 95,728.88
Step by Step Solution
- Step 1: Write the proportion equation
126,730.50 : 174,885.36 = 69,369.84 : x - Step 2: Convert to fraction form
126,730.50/174,885.36 = 69,369.84/x - Step 3: Cross multiply
126,730.50x = 174,885.36 × 69,369.84 - Step 4: Simplify right side
126,730.50x = 12,131,769,441.54 - Step 5: Solve for x
x = 12,131,769,441.54/126,730.50 - Step 6: Final answer
x = 95,728.88
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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.