Finding the Fourth Proportional to 108,758.20, 163,129.36 and 29,865.64
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Solution
The fourth proportional to 108,758.20, 163,129.36 and 29,865.64 is: 44,796.28
Step by Step Solution
- Step 1: Write the proportion equation
108,758.20 : 163,129.36 = 29,865.64 : x - Step 2: Convert to fraction form
108,758.20/163,129.36 = 29,865.64/x - Step 3: Cross multiply
108,758.20x = 163,129.36 × 29,865.64 - Step 4: Simplify right side
108,758.20x = 4,871,962,739.19 - Step 5: Solve for x
x = 4,871,962,739.19/108,758.20 - Step 6: Final answer
x = 44,796.28
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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.