Finding the Fourth Proportional to 107,199.09, 147,813.58 and 68,385.14
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Solution
The fourth proportional to 107,199.09, 147,813.58 and 68,385.14 is: 94,294.19
Step by Step Solution
- Step 1: Write the proportion equation
107,199.09 : 147,813.58 = 68,385.14 : x - Step 2: Convert to fraction form
107,199.09/147,813.58 = 68,385.14/x - Step 3: Cross multiply
107,199.09x = 147,813.58 × 68,385.14 - Step 4: Simplify right side
107,199.09x = 10,108,251,452.17 - Step 5: Solve for x
x = 10,108,251,452.17/107,199.09 - Step 6: Final answer
x = 94,294.19
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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.