Finding the Fourth Proportional to 102,638.36, 153,979.14 and 38,596.88
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Solution
The fourth proportional to 102,638.36, 153,979.14 and 38,596.88 is: 57,903.44
Step by Step Solution
- Step 1: Write the proportion equation
102,638.36 : 153,979.14 = 38,596.88 : x - Step 2: Convert to fraction form
102,638.36/153,979.14 = 38,596.88/x - Step 3: Cross multiply
102,638.36x = 153,979.14 × 38,596.88 - Step 4: Simplify right side
102,638.36x = 5,943,114,389.08 - Step 5: Solve for x
x = 5,943,114,389.08/102,638.36 - Step 6: Final answer
x = 57,903.44
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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.