Finding the Fourth Proportional to 187,428.39, 258,657.12 and 102,545.46
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Solution
The fourth proportional to 187,428.39, 258,657.12 and 102,545.46 is: 141,515.99
Step by Step Solution
- Step 1: Write the proportion equation
187,428.39 : 258,657.12 = 102,545.46 : x - Step 2: Convert to fraction form
187,428.39/258,657.12 = 102,545.46/x - Step 3: Cross multiply
187,428.39x = 258,657.12 × 102,545.46 - Step 4: Simplify right side
187,428.39x = 26,524,113,352.68 - Step 5: Solve for x
x = 26,524,113,352.68/187,428.39 - Step 6: Final answer
x = 141,515.99
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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.