Finding the Fourth Proportional to 151,842.03, 209,543.57 and 83,860.71
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Solution
The fourth proportional to 151,842.03, 209,543.57 and 83,860.71 is: 115,728.65
Step by Step Solution
- Step 1: Write the proportion equation
151,842.03 : 209,543.57 = 83,860.71 : x - Step 2: Convert to fraction form
151,842.03/209,543.57 = 83,860.71/x - Step 3: Cross multiply
151,842.03x = 209,543.57 × 83,860.71 - Step 4: Simplify right side
151,842.03x = 17,572,472,556.13 - Step 5: Solve for x
x = 17,572,472,556.13/151,842.03 - Step 6: Final answer
x = 115,728.65
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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.