Finding the Fourth Proportional to 155,139.23, 214,115.30 and 94,744.62
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Solution
The fourth proportional to 155,139.23, 214,115.30 and 94,744.62 is: 130,761.72
Step by Step Solution
- Step 1: Write the proportion equation
155,139.23 : 214,115.30 = 94,744.62 : x - Step 2: Convert to fraction form
155,139.23/214,115.30 = 94,744.62/x - Step 3: Cross multiply
155,139.23x = 214,115.30 × 94,744.62 - Step 4: Simplify right side
155,139.23x = 20,286,272,616.26 - Step 5: Solve for x
x = 20,286,272,616.26/155,139.23 - Step 6: Final answer
x = 130,761.72
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1.5x scale
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.