Finding the Fourth Proportional to 158,177.38, 218,290.26 and 90,204.62
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Solution
The fourth proportional to 158,177.38, 218,290.26 and 90,204.62 is: 124,485.50
Step by Step Solution
- Step 1: Write the proportion equation
158,177.38 : 218,290.26 = 90,204.62 : x - Step 2: Convert to fraction form
158,177.38/218,290.26 = 90,204.62/x - Step 3: Cross multiply
158,177.38x = 218,290.26 × 90,204.62 - Step 4: Simplify right side
158,177.38x = 19,690,789,953.00 - Step 5: Solve for x
x = 19,690,789,953.00/158,177.38 - Step 6: Final answer
x = 124,485.50
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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.