Finding the Fourth Proportional to 135,029.30, 202,414.35 and 105,026.90
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Solution
The fourth proportional to 135,029.30, 202,414.35 and 105,026.90 is: 157,439.55
Step by Step Solution
- Step 1: Write the proportion equation
135,029.30 : 202,414.35 = 105,026.90 : x - Step 2: Convert to fraction form
135,029.30/202,414.35 = 105,026.90/x - Step 3: Cross multiply
135,029.30x = 202,414.35 × 105,026.90 - Step 4: Simplify right side
135,029.30x = 21,258,951,696.02 - Step 5: Solve for x
x = 21,258,951,696.02/135,029.30 - Step 6: Final answer
x = 157,439.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.