Finding the Fourth Proportional to 157,204.97, 216,941.55 and 85,584.84
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Solution
The fourth proportional to 157,204.97, 216,941.55 and 85,584.84 is: 118,106.37
Step by Step Solution
- Step 1: Write the proportion equation
157,204.97 : 216,941.55 = 85,584.84 : x - Step 2: Convert to fraction form
157,204.97/216,941.55 = 85,584.84/x - Step 3: Cross multiply
157,204.97x = 216,941.55 × 85,584.84 - Step 4: Simplify right side
157,204.97x = 18,566,907,846.10 - Step 5: Solve for x
x = 18,566,907,846.10/157,204.97 - Step 6: Final answer
x = 118,106.37
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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.