Finding the Fourth Proportional to 129,374.95, 194,070.66 and 40,631.96
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Solution
The fourth proportional to 129,374.95, 194,070.66 and 40,631.96 is: 60,950.53
Step by Step Solution
- Step 1: Write the proportion equation
129,374.95 : 194,070.66 = 40,631.96 : x - Step 2: Convert to fraction form
129,374.95/194,070.66 = 40,631.96/x - Step 3: Cross multiply
129,374.95x = 194,070.66 × 40,631.96 - Step 4: Simplify right side
129,374.95x = 7,885,471,294.29 - Step 5: Solve for x
x = 7,885,471,294.29/129,374.95 - Step 6: Final answer
x = 60,950.53
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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.