Finding the Fourth Proportional to 135,869.76, 202,427.28 and 129,177.72
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Solution
The fourth proportional to 135,869.76, 202,427.28 and 129,177.72 is: 192,457.06
Step by Step Solution
- Step 1: Write the proportion equation
135,869.76 : 202,427.28 = 129,177.72 : x - Step 2: Convert to fraction form
135,869.76/202,427.28 = 129,177.72/x - Step 3: Cross multiply
135,869.76x = 202,427.28 × 129,177.72 - Step 4: Simplify right side
135,869.76x = 26,149,094,496.20 - Step 5: Solve for x
x = 26,149,094,496.20/135,869.76 - Step 6: Final answer
x = 192,457.06
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.