Finding the Fourth Proportional to 132,390.21, 198,522.91 and 48,090.95
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Solution
The fourth proportional to 132,390.21, 198,522.91 and 48,090.95 is: 72,113.75
Step by Step Solution
- Step 1: Write the proportion equation
132,390.21 : 198,522.91 = 48,090.95 : x - Step 2: Convert to fraction form
132,390.21/198,522.91 = 48,090.95/x - Step 3: Cross multiply
132,390.21x = 198,522.91 × 48,090.95 - Step 4: Simplify right side
132,390.21x = 9,547,154,105.60 - Step 5: Solve for x
x = 9,547,154,105.60/132,390.21 - Step 6: Final answer
x = 72,113.75
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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.