Finding the Fourth Proportional to 163,294.90, 225,331.40 and 91,658.50
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Solution
The fourth proportional to 163,294.90, 225,331.40 and 91,658.50 is: 126,479.99
Step by Step Solution
- Step 1: Write the proportion equation
163,294.90 : 225,331.40 = 91,658.50 : x - Step 2: Convert to fraction form
163,294.90/225,331.40 = 91,658.50/x - Step 3: Cross multiply
163,294.90x = 225,331.40 × 91,658.50 - Step 4: Simplify right side
163,294.90x = 20,653,538,126.90 - Step 5: Solve for x
x = 20,653,538,126.90/163,294.90 - Step 6: Final answer
x = 126,479.99
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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.