Finding the Fourth Proportional to 129,229.23, 193,645.99 and 86,952.72
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Solution
The fourth proportional to 129,229.23, 193,645.99 and 86,952.72 is: 130,295.95
Step by Step Solution
- Step 1: Write the proportion equation
129,229.23 : 193,645.99 = 86,952.72 : x - Step 2: Convert to fraction form
129,229.23/193,645.99 = 86,952.72/x - Step 3: Cross multiply
129,229.23x = 193,645.99 × 86,952.72 - Step 4: Simplify right side
129,229.23x = 16,838,045,547.59 - Step 5: Solve for x
x = 16,838,045,547.59/129,229.23 - Step 6: Final answer
x = 130,295.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.