Finding the Fourth Proportional to 163,739.18, 225,943.98 and 92,117.67
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Solution
The fourth proportional to 163,739.18, 225,943.98 and 92,117.67 is: 127,113.34
Step by Step Solution
- Step 1: Write the proportion equation
163,739.18 : 225,943.98 = 92,117.67 : x - Step 2: Convert to fraction form
163,739.18/225,943.98 = 92,117.67/x - Step 3: Cross multiply
163,739.18x = 225,943.98 × 92,117.67 - Step 4: Simplify right side
163,739.18x = 20,813,432,988.13 - Step 5: Solve for x
x = 20,813,432,988.13/163,739.18 - Step 6: Final answer
x = 127,113.34
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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.