Finding the Fourth Proportional to 163,134.19, 225,135.53 and 91,518.85
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Solution
The fourth proportional to 163,134.19, 225,135.53 and 91,518.85 is: 126,301.82
Step by Step Solution
- Step 1: Write the proportion equation
163,134.19 : 225,135.53 = 91,518.85 : x - Step 2: Convert to fraction form
163,134.19/225,135.53 = 91,518.85/x - Step 3: Cross multiply
163,134.19x = 225,135.53 × 91,518.85 - Step 4: Simplify right side
163,134.19x = 20,604,144,799.74 - Step 5: Solve for x
x = 20,604,144,799.74/163,134.19 - Step 6: Final answer
x = 126,301.82
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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.