Finding the Fourth Proportional to 133,087.30, 199,630.95 and 66,537.70
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Solution
The fourth proportional to 133,087.30, 199,630.95 and 66,537.70 is: 99,806.55
Step by Step Solution
- Step 1: Write the proportion equation
133,087.30 : 199,630.95 = 66,537.70 : x - Step 2: Convert to fraction form
133,087.30/199,630.95 = 66,537.70/x - Step 3: Cross multiply
133,087.30x = 199,630.95 × 66,537.70 - Step 4: Simplify right side
133,087.30x = 13,282,984,261.82 - Step 5: Solve for x
x = 13,282,984,261.82/133,087.30 - Step 6: Final answer
x = 99,806.55
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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.