Finding the Fourth Proportional to 99,307.68, 148,982.40 and 29,181.12
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Solution
The fourth proportional to 99,307.68, 148,982.40 and 29,181.12 is: 43,777.82
Step by Step Solution
- Step 1: Write the proportion equation
99,307.68 : 148,982.40 = 29,181.12 : x - Step 2: Convert to fraction form
99,307.68/148,982.40 = 29,181.12/x - Step 3: Cross multiply
99,307.68x = 148,982.40 × 29,181.12 - Step 4: Simplify right side
99,307.68x = 4,347,473,292.29 - Step 5: Solve for x
x = 4,347,473,292.29/99,307.68 - Step 6: Final answer
x = 43,777.82
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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.