Finding the Fourth Proportional to 124,992.48, 172,090.08 and 101,197.92
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Solution
The fourth proportional to 124,992.48, 172,090.08 and 101,197.92 is: 139,329.65
Step by Step Solution
- Step 1: Write the proportion equation
124,992.48 : 172,090.08 = 101,197.92 : x - Step 2: Convert to fraction form
124,992.48/172,090.08 = 101,197.92/x - Step 3: Cross multiply
124,992.48x = 172,090.08 × 101,197.92 - Step 4: Simplify right side
124,992.48x = 17,415,158,148.63 - Step 5: Solve for x
x = 17,415,158,148.63/124,992.48 - Step 6: Final answer
x = 139,329.65
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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.