Finding the Fourth Proportional to 155,554.30, 214,668.93 and 87,573.70
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Solution
The fourth proportional to 155,554.30, 214,668.93 and 87,573.70 is: 120,853.96
Step by Step Solution
- Step 1: Write the proportion equation
155,554.30 : 214,668.93 = 87,573.70 : x - Step 2: Convert to fraction form
155,554.30/214,668.93 = 87,573.70/x - Step 3: Cross multiply
155,554.30x = 214,668.93 × 87,573.70 - Step 4: Simplify right side
155,554.30x = 18,799,352,475.14 - Step 5: Solve for x
x = 18,799,352,475.14/155,554.30 - Step 6: Final answer
x = 120,853.96
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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.