Finding the Fourth Proportional to 153,938.88, 212,435.87 and 93,493.44
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Solution
The fourth proportional to 153,938.88, 212,435.87 and 93,493.44 is: 129,021.08
Step by Step Solution
- Step 1: Write the proportion equation
153,938.88 : 212,435.87 = 93,493.44 : x - Step 2: Convert to fraction form
153,938.88/212,435.87 = 93,493.44/x - Step 3: Cross multiply
153,938.88x = 212,435.87 × 93,493.44 - Step 4: Simplify right side
153,938.88x = 19,861,359,798.23 - Step 5: Solve for x
x = 19,861,359,798.23/153,938.88 - Step 6: Final answer
x = 129,021.08
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.