Finding the Fourth Proportional to 135,098.18, 202,646.95 and 126,877.45
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Solution
The fourth proportional to 135,098.18, 202,646.95 and 126,877.45 is: 190,315.87
Step by Step Solution
- Step 1: Write the proportion equation
135,098.18 : 202,646.95 = 126,877.45 : x - Step 2: Convert to fraction form
135,098.18/202,646.95 = 126,877.45/x - Step 3: Cross multiply
135,098.18x = 202,646.95 × 126,877.45 - Step 4: Simplify right side
135,098.18x = 25,711,328,266.28 - Step 5: Solve for x
x = 25,711,328,266.28/135,098.18 - Step 6: Final answer
x = 190,315.87
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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.