Finding the Fourth Proportional to 136,037.68, 187,754.28 and 113,340.68
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Solution
The fourth proportional to 136,037.68, 187,754.28 and 113,340.68 is: 156,428.70
Step by Step Solution
- Step 1: Write the proportion equation
136,037.68 : 187,754.28 = 113,340.68 : x - Step 2: Convert to fraction form
136,037.68/187,754.28 = 113,340.68/x - Step 3: Cross multiply
136,037.68x = 187,754.28 × 113,340.68 - Step 4: Simplify right side
136,037.68x = 21,280,197,768.11 - Step 5: Solve for x
x = 21,280,197,768.11/136,037.68 - Step 6: Final answer
x = 156,428.70
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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.