Finding the Fourth Proportional to 163,859.13, 226,123.25 and 91,261.53
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Solution
The fourth proportional to 163,859.13, 226,123.25 and 91,261.53 is: 125,939.60
Step by Step Solution
- Step 1: Write the proportion equation
163,859.13 : 226,123.25 = 91,261.53 : x - Step 2: Convert to fraction form
163,859.13/226,123.25 = 91,261.53/x - Step 3: Cross multiply
163,859.13x = 226,123.25 × 91,261.53 - Step 4: Simplify right side
163,859.13x = 20,636,353,307.26 - Step 5: Solve for x
x = 20,636,353,307.26/163,859.13 - Step 6: Final answer
x = 125,939.60
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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.