Finding the Fourth Proportional to 128,238.00, 176,977.60 and 70,876.09
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Solution
The fourth proportional to 128,238.00, 176,977.60 and 70,876.09 is: 97,814.06
Step by Step Solution
- Step 1: Write the proportion equation
128,238.00 : 176,977.60 = 70,876.09 : x - Step 2: Convert to fraction form
128,238.00/176,977.60 = 70,876.09/x - Step 3: Cross multiply
128,238.00x = 176,977.60 × 70,876.09 - Step 4: Simplify right side
128,238.00x = 12,543,479,553.46 - Step 5: Solve for x
x = 12,543,479,553.46/128,238.00 - Step 6: Final answer
x = 97,814.06
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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.