Finding the Fourth Proportional to 129,543.08, 193,955.82 and 66,226.90
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Solution
The fourth proportional to 129,543.08, 193,955.82 and 66,226.90 is: 99,156.92
Step by Step Solution
- Step 1: Write the proportion equation
129,543.08 : 193,955.82 = 66,226.90 : x - Step 2: Convert to fraction form
129,543.08/193,955.82 = 66,226.90/x - Step 3: Cross multiply
129,543.08x = 193,955.82 × 66,226.90 - Step 4: Simplify right side
129,543.08x = 12,845,092,695.56 - Step 5: Solve for x
x = 12,845,092,695.56/129,543.08 - Step 6: Final answer
x = 99,156.92
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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.