Finding the Fourth Proportional to 155,750.38, 214,935.61 and 84,130.40
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Solution
The fourth proportional to 155,750.38, 214,935.61 and 84,130.40 is: 116,100.00
Step by Step Solution
- Step 1: Write the proportion equation
155,750.38 : 214,935.61 = 84,130.40 : x - Step 2: Convert to fraction form
155,750.38/214,935.61 = 84,130.40/x - Step 3: Cross multiply
155,750.38x = 214,935.61 × 84,130.40 - Step 4: Simplify right side
155,750.38x = 18,082,619,026.05 - Step 5: Solve for x
x = 18,082,619,026.05/155,750.38 - Step 6: Final answer
x = 116,100.00
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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.