Finding the Fourth Proportional to 102,537.68, 153,791.16 and 85,119.44
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Solution
The fourth proportional to 102,537.68, 153,791.16 and 85,119.44 is: 127,666.41
Step by Step Solution
- Step 1: Write the proportion equation
102,537.68 : 153,791.16 = 85,119.44 : x - Step 2: Convert to fraction form
102,537.68/153,791.16 = 85,119.44/x - Step 3: Cross multiply
102,537.68x = 153,791.16 × 85,119.44 - Step 4: Simplify right side
102,537.68x = 13,090,617,416.15 - Step 5: Solve for x
x = 13,090,617,416.15/102,537.68 - Step 6: Final answer
x = 127,666.41
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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.