Finding the Fourth Proportional to 136,037.21, 187,718.45 and 126,006.17
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Solution
The fourth proportional to 136,037.21, 187,718.45 and 126,006.17 is: 173,876.56
Step by Step Solution
- Step 1: Write the proportion equation
136,037.21 : 187,718.45 = 126,006.17 : x - Step 2: Convert to fraction form
136,037.21/187,718.45 = 126,006.17/x - Step 3: Cross multiply
136,037.21x = 187,718.45 × 126,006.17 - Step 4: Simplify right side
136,037.21x = 23,653,681,354.21 - Step 5: Solve for x
x = 23,653,681,354.21/136,037.21 - Step 6: Final answer
x = 173,876.56
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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.