Finding the Fourth Proportional to 128,309.00, 177,059.21 and 70,944.98
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Solution
The fourth proportional to 128,309.00, 177,059.21 and 70,944.98 is: 97,900.08
Step by Step Solution
- Step 1: Write the proportion equation
128,309.00 : 177,059.21 = 70,944.98 : x - Step 2: Convert to fraction form
128,309.00/177,059.21 = 70,944.98/x - Step 3: Cross multiply
128,309.00x = 177,059.21 × 70,944.98 - Step 4: Simplify right side
128,309.00x = 12,561,460,872.24 - Step 5: Solve for x
x = 12,561,460,872.24/128,309.00 - Step 6: Final answer
x = 97,900.08
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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.