Finding the Fourth Proportional to 111,393.68, 153,709.11 and 63,650.12
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Solution
The fourth proportional to 111,393.68, 153,709.11 and 63,650.12 is: 87,829.07
Step by Step Solution
- Step 1: Write the proportion equation
111,393.68 : 153,709.11 = 63,650.12 : x - Step 2: Convert to fraction form
111,393.68/153,709.11 = 63,650.12/x - Step 3: Cross multiply
111,393.68x = 153,709.11 × 63,650.12 - Step 4: Simplify right side
111,393.68x = 9,783,602,528.05 - Step 5: Solve for x
x = 9,783,602,528.05/111,393.68 - Step 6: Final answer
x = 87,829.07
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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.