Finding the Fourth Proportional to 124,707.09, 172,104.47 and 70,992.09
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Solution
The fourth proportional to 124,707.09, 172,104.47 and 70,992.09 is: 97,974.03
Step by Step Solution
- Step 1: Write the proportion equation
124,707.09 : 172,104.47 = 70,992.09 : x - Step 2: Convert to fraction form
124,707.09/172,104.47 = 70,992.09/x - Step 3: Cross multiply
124,707.09x = 172,104.47 × 70,992.09 - Step 4: Simplify right side
124,707.09x = 12,218,055,668.68 - Step 5: Solve for x
x = 12,218,055,668.68/124,707.09 - Step 6: Final answer
x = 97,974.03
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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.