Finding the Fourth Proportional to 99,966.60, 149,851.98 and 49,971.96
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Solution
The fourth proportional to 99,966.60, 149,851.98 and 49,971.96 is: 74,908.99
Step by Step Solution
- Step 1: Write the proportion equation
99,966.60 : 149,851.98 = 49,971.96 : x - Step 2: Convert to fraction form
99,966.60/149,851.98 = 49,971.96/x - Step 3: Cross multiply
99,966.60x = 149,851.98 × 49,971.96 - Step 4: Simplify right side
99,966.60x = 7,488,397,150.48 - Step 5: Solve for x
x = 7,488,397,150.48/99,966.60 - Step 6: Final answer
x = 74,908.99
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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.