Finding the Fourth Proportional to 162,855.13, 224,740.07 and 91,235.13
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Solution
The fourth proportional to 162,855.13, 224,740.07 and 91,235.13 is: 125,904.47
Step by Step Solution
- Step 1: Write the proportion equation
162,855.13 : 224,740.07 = 91,235.13 : x - Step 2: Convert to fraction form
162,855.13/224,740.07 = 91,235.13/x - Step 3: Cross multiply
162,855.13x = 224,740.07 × 91,235.13 - Step 4: Simplify right side
162,855.13x = 20,504,189,502.66 - Step 5: Solve for x
x = 20,504,189,502.66/162,855.13 - Step 6: Final answer
x = 125,904.47
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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.