Finding the Fourth Proportional to 133,097.40, 199,646.10 and 79,953.30
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Solution
The fourth proportional to 133,097.40, 199,646.10 and 79,953.30 is: 119,929.95
Step by Step Solution
- Step 1: Write the proportion equation
133,097.40 : 199,646.10 = 79,953.30 : x - Step 2: Convert to fraction form
133,097.40/199,646.10 = 79,953.30/x - Step 3: Cross multiply
133,097.40x = 199,646.10 × 79,953.30 - Step 4: Simplify right side
133,097.40x = 15,962,364,527.13 - Step 5: Solve for x
x = 15,962,364,527.13/133,097.40 - Step 6: Final answer
x = 119,929.95
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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.