Finding the Fourth Proportional to 163,756.21, 225,971.40 and 92,122.42
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Solution
The fourth proportional to 163,756.21, 225,971.40 and 92,122.42 is: 127,122.09
Step by Step Solution
- Step 1: Write the proportion equation
163,756.21 : 225,971.40 = 92,122.42 : x - Step 2: Convert to fraction form
163,756.21/225,971.40 = 92,122.42/x - Step 3: Cross multiply
163,756.21x = 225,971.40 × 92,122.42 - Step 4: Simplify right side
163,756.21x = 20,817,032,218.79 - Step 5: Solve for x
x = 20,817,032,218.79/163,756.21 - Step 6: Final answer
x = 127,122.09
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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.