Finding the Fourth Proportional to 125,424.05, 173,073.65 and 74,428.00
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Solution
The fourth proportional to 125,424.05, 173,073.65 and 74,428.00 is: 102,703.79
Step by Step Solution
- Step 1: Write the proportion equation
125,424.05 : 173,073.65 = 74,428.00 : x - Step 2: Convert to fraction form
125,424.05/173,073.65 = 74,428.00/x - Step 3: Cross multiply
125,424.05x = 173,073.65 × 74,428.00 - Step 4: Simplify right side
125,424.05x = 12,881,524,817.38 - Step 5: Solve for x
x = 12,881,524,817.38/125,424.05 - Step 6: Final answer
x = 102,703.79
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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.