Finding the Fourth Proportional to 126,406.68, 174,436.65 and 69,816.84
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Solution
The fourth proportional to 126,406.68, 174,436.65 and 69,816.84 is: 96,344.72
Step by Step Solution
- Step 1: Write the proportion equation
126,406.68 : 174,436.65 = 69,816.84 : x - Step 2: Convert to fraction form
126,406.68/174,436.65 = 69,816.84/x - Step 3: Cross multiply
126,406.68x = 174,436.65 × 69,816.84 - Step 4: Simplify right side
126,406.68x = 12,178,615,683.19 - Step 5: Solve for x
x = 12,178,615,683.19/126,406.68 - Step 6: Final answer
x = 96,344.72
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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.