Finding the Fourth Proportional to 133,126.11, 198,670.26 and 118,926.69
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Solution
The fourth proportional to 133,126.11, 198,670.26 and 118,926.69 is: 177,479.81
Step by Step Solution
- Step 1: Write the proportion equation
133,126.11 : 198,670.26 = 118,926.69 : x - Step 2: Convert to fraction form
133,126.11/198,670.26 = 118,926.69/x - Step 3: Cross multiply
133,126.11x = 198,670.26 × 118,926.69 - Step 4: Simplify right side
133,126.11x = 23,627,196,423.24 - Step 5: Solve for x
x = 23,627,196,423.24/133,126.11 - Step 6: Final answer
x = 177,479.81
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.