Finding the Fourth Proportional to 163,458.81, 225,673.80 and 129,604.05
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Solution
The fourth proportional to 163,458.81, 225,673.80 and 129,604.05 is: 178,933.38
Step by Step Solution
- Step 1: Write the proportion equation
163,458.81 : 225,673.80 = 129,604.05 : x - Step 2: Convert to fraction form
163,458.81/225,673.80 = 129,604.05/x - Step 3: Cross multiply
163,458.81x = 225,673.80 × 129,604.05 - Step 4: Simplify right side
163,458.81x = 29,248,237,972.87 - Step 5: Solve for x
x = 29,248,237,972.87/163,458.81 - Step 6: Final answer
x = 178,933.38
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1.5x scale
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.