Finding the Fourth Proportional to 128,599.24, 177,462.92 and 71,236.26
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Solution
The fourth proportional to 128,599.24, 177,462.92 and 71,236.26 is: 98,303.81
Step by Step Solution
- Step 1: Write the proportion equation
128,599.24 : 177,462.92 = 71,236.26 : x - Step 2: Convert to fraction form
128,599.24/177,462.92 = 71,236.26/x - Step 3: Cross multiply
128,599.24x = 177,462.92 × 71,236.26 - Step 4: Simplify right side
128,599.24x = 12,641,794,709.48 - Step 5: Solve for x
x = 12,641,794,709.48/128,599.24 - Step 6: Final answer
x = 98,303.81
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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.