Finding the Fourth Proportional to 157,631.68, 236,447.52 and 105,143.68
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Solution
The fourth proportional to 157,631.68, 236,447.52 and 105,143.68 is: 157,715.52
Step by Step Solution
- Step 1: Write the proportion equation
157,631.68 : 236,447.52 = 105,143.68 : x - Step 2: Convert to fraction form
157,631.68/236,447.52 = 105,143.68/x - Step 3: Cross multiply
157,631.68x = 236,447.52 × 105,143.68 - Step 4: Simplify right side
157,631.68x = 24,860,962,379.67 - Step 5: Solve for x
x = 24,860,962,379.67/157,631.68 - Step 6: Final answer
x = 157,715.52
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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.