Finding the Fourth Proportional to 132,638.58, 182,988.32 and 78,903.99
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Solution
The fourth proportional to 132,638.58, 182,988.32 and 78,903.99 is: 108,856.02
Step by Step Solution
- Step 1: Write the proportion equation
132,638.58 : 182,988.32 = 78,903.99 : x - Step 2: Convert to fraction form
132,638.58/182,988.32 = 78,903.99/x - Step 3: Cross multiply
132,638.58x = 182,988.32 × 78,903.99 - Step 4: Simplify right side
132,638.58x = 14,438,508,176.88 - Step 5: Solve for x
x = 14,438,508,176.88/132,638.58 - Step 6: Final answer
x = 108,856.02
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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.