Finding the Fourth Proportional to 118,343.70, 177,515.55 and 112,511.70
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Solution
The fourth proportional to 118,343.70, 177,515.55 and 112,511.70 is: 168,767.55
Step by Step Solution
- Step 1: Write the proportion equation
118,343.70 : 177,515.55 = 112,511.70 : x - Step 2: Convert to fraction form
118,343.70/177,515.55 = 112,511.70/x - Step 3: Cross multiply
118,343.70x = 177,515.55 × 112,511.70 - Step 4: Simplify right side
118,343.70x = 19,972,576,306.94 - Step 5: Solve for x
x = 19,972,576,306.94/118,343.70 - Step 6: Final answer
x = 168,767.55
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1.5x scale
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.