Finding the Fourth Proportional to 155,169.09, 214,142.51 and 116,861.06
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Solution
The fourth proportional to 155,169.09, 214,142.51 and 116,861.06 is: 161,275.17
Step by Step Solution
- Step 1: Write the proportion equation
155,169.09 : 214,142.51 = 116,861.06 : x - Step 2: Convert to fraction form
155,169.09/214,142.51 = 116,861.06/x - Step 3: Cross multiply
155,169.09x = 214,142.51 × 116,861.06 - Step 4: Simplify right side
155,169.09x = 25,024,921,537.17 - Step 5: Solve for x
x = 25,024,921,537.17/155,169.09 - Step 6: Final answer
x = 161,275.17
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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.