Finding the Fourth Proportional to 118,981.86, 164,102.17 and 73,684.99
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Solution
The fourth proportional to 118,981.86, 164,102.17 and 73,684.99 is: 101,627.82
Step by Step Solution
- Step 1: Write the proportion equation
118,981.86 : 164,102.17 = 73,684.99 : x - Step 2: Convert to fraction form
118,981.86/164,102.17 = 73,684.99/x - Step 3: Cross multiply
118,981.86x = 164,102.17 × 73,684.99 - Step 4: Simplify right side
118,981.86x = 12,091,866,914.50 - Step 5: Solve for x
x = 12,091,866,914.50/118,981.86 - Step 6: Final answer
x = 101,627.82
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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.