Finding the Fourth Proportional to 127,725.18, 176,266.19 and 71,136.55
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Solution
The fourth proportional to 127,725.18, 176,266.19 and 71,136.55 is: 98,171.47
Step by Step Solution
- Step 1: Write the proportion equation
127,725.18 : 176,266.19 = 71,136.55 : x - Step 2: Convert to fraction form
127,725.18/176,266.19 = 71,136.55/x - Step 3: Cross multiply
127,725.18x = 176,266.19 × 71,136.55 - Step 4: Simplify right side
127,725.18x = 12,538,968,638.24 - Step 5: Solve for x
x = 12,538,968,638.24/127,725.18 - Step 6: Final answer
x = 98,171.47
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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.