Finding the Fourth Proportional to 155,197.13, 214,171.80 and 90,710.70
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Solution
The fourth proportional to 155,197.13, 214,171.80 and 90,710.70 is: 125,180.63
Step by Step Solution
- Step 1: Write the proportion equation
155,197.13 : 214,171.80 = 90,710.70 : x - Step 2: Convert to fraction form
155,197.13/214,171.80 = 90,710.70/x - Step 3: Cross multiply
155,197.13x = 214,171.80 × 90,710.70 - Step 4: Simplify right side
155,197.13x = 19,427,673,898.26 - Step 5: Solve for x
x = 19,427,673,898.26/155,197.13 - Step 6: Final answer
x = 125,180.63
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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.