Finding the Fourth Proportional to 170,178.54, 234,918.99 and 121,151.76
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Solution
The fourth proportional to 170,178.54, 234,918.99 and 121,151.76 is: 167,241.12
Step by Step Solution
- Step 1: Write the proportion equation
170,178.54 : 234,918.99 = 121,151.76 : x - Step 2: Convert to fraction form
170,178.54/234,918.99 = 121,151.76/x - Step 3: Cross multiply
170,178.54x = 234,918.99 × 121,151.76 - Step 4: Simplify right side
170,178.54x = 28,460,849,095.92 - Step 5: Solve for x
x = 28,460,849,095.92/170,178.54 - Step 6: Final answer
x = 167,241.12
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1.5x scale
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.