Finding the Fourth Proportional to 155,750.72, 214,936.08 and 84,130.74
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Solution
The fourth proportional to 155,750.72, 214,936.08 and 84,130.74 is: 116,100.46
Step by Step Solution
- Step 1: Write the proportion equation
155,750.72 : 214,936.08 = 84,130.74 : x - Step 2: Convert to fraction form
155,750.72/214,936.08 = 84,130.74/x - Step 3: Cross multiply
155,750.72x = 214,936.08 × 84,130.74 - Step 4: Simplify right side
155,750.72x = 18,082,729,967.77 - Step 5: Solve for x
x = 18,082,729,967.77/155,750.72 - Step 6: Final answer
x = 116,100.46
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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.