Finding the Fourth Proportional to 155,722.99, 214,897.71 and 84,103.03
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Solution
The fourth proportional to 155,722.99, 214,897.71 and 84,103.03 is: 116,062.17
Step by Step Solution
- Step 1: Write the proportion equation
155,722.99 : 214,897.71 = 84,103.03 : x - Step 2: Convert to fraction form
155,722.99/214,897.71 = 84,103.03/x - Step 3: Cross multiply
155,722.99x = 214,897.71 × 84,103.03 - Step 4: Simplify right side
155,722.99x = 18,073,548,551.06 - Step 5: Solve for x
x = 18,073,548,551.06/155,722.99 - Step 6: Final answer
x = 116,062.17
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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.