Finding the Fourth Proportional to 102,136.71, 153,205.11 and 27,257.13
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Solution
The fourth proportional to 102,136.71, 153,205.11 and 27,257.13 is: 40,885.71
Step by Step Solution
- Step 1: Write the proportion equation
102,136.71 : 153,205.11 = 27,257.13 : x - Step 2: Convert to fraction form
102,136.71/153,205.11 = 27,257.13/x - Step 3: Cross multiply
102,136.71x = 153,205.11 × 27,257.13 - Step 4: Simplify right side
102,136.71x = 4,175,931,599.93 - Step 5: Solve for x
x = 4,175,931,599.93/102,136.71 - Step 6: Final answer
x = 40,885.71
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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.