Finding the Fourth Proportional to 103,691.02, 155,347.64 and 72,034.14
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Solution
The fourth proportional to 103,691.02, 155,347.64 and 72,034.14 is: 107,919.99
Step by Step Solution
- Step 1: Write the proportion equation
103,691.02 : 155,347.64 = 72,034.14 : x - Step 2: Convert to fraction form
103,691.02/155,347.64 = 72,034.14/x - Step 3: Cross multiply
103,691.02x = 155,347.64 × 72,034.14 - Step 4: Simplify right side
103,691.02x = 11,190,333,648.43 - Step 5: Solve for x
x = 11,190,333,648.43/103,691.02 - Step 6: Final answer
x = 107,919.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.