Finding the Fourth Proportional to 97,913.75, 135,121.80 and 53,201.75
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Solution
The fourth proportional to 97,913.75, 135,121.80 and 53,201.75 is: 73,418.86
Step by Step Solution
- Step 1: Write the proportion equation
97,913.75 : 135,121.80 = 53,201.75 : x - Step 2: Convert to fraction form
97,913.75/135,121.80 = 53,201.75/x - Step 3: Cross multiply
97,913.75x = 135,121.80 × 53,201.75 - Step 4: Simplify right side
97,913.75x = 7,188,716,223.15 - Step 5: Solve for x
x = 7,188,716,223.15/97,913.75 - Step 6: Final answer
x = 73,418.86
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1.5x scale
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.