Finding the Fourth Proportional to 107,167.05, 147,455.91 and 87,976.26
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Solution
The fourth proportional to 107,167.05, 147,455.91 and 87,976.26 is: 121,050.45
Step by Step Solution
- Step 1: Write the proportion equation
107,167.05 : 147,455.91 = 87,976.26 : x - Step 2: Convert to fraction form
107,167.05/147,455.91 = 87,976.26/x - Step 3: Cross multiply
107,167.05x = 147,455.91 × 87,976.26 - Step 4: Simplify right side
107,167.05x = 12,972,619,476.70 - Step 5: Solve for x
x = 12,972,619,476.70/107,167.05 - Step 6: Final answer
x = 121,050.45
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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.