Finding the Fourth Proportional to 163,420.41, 225,507.87 and 91,786.44
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Solution
The fourth proportional to 163,420.41, 225,507.87 and 91,786.44 is: 126,658.38
Step by Step Solution
- Step 1: Write the proportion equation
163,420.41 : 225,507.87 = 91,786.44 : x - Step 2: Convert to fraction form
163,420.41/225,507.87 = 91,786.44/x - Step 3: Cross multiply
163,420.41x = 225,507.87 × 91,786.44 - Step 4: Simplify right side
163,420.41x = 20,698,564,579.28 - Step 5: Solve for x
x = 20,698,564,579.28/163,420.41 - Step 6: Final answer
x = 126,658.38
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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.