Finding the Fourth Proportional to 99,136.07, 136,804.05 and 53,813.08
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Solution
The fourth proportional to 99,136.07, 136,804.05 and 53,813.08 is: 74,260.03
Step by Step Solution
- Step 1: Write the proportion equation
99,136.07 : 136,804.05 = 53,813.08 : x - Step 2: Convert to fraction form
99,136.07/136,804.05 = 53,813.08/x - Step 3: Cross multiply
99,136.07x = 136,804.05 × 53,813.08 - Step 4: Simplify right side
99,136.07x = 7,361,847,286.97 - Step 5: Solve for x
x = 7,361,847,286.97/99,136.07 - Step 6: Final answer
x = 74,260.03
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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.