Finding the Fourth Proportional to 163,538.80, 245,113.80 and 68,768.80
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Solution
The fourth proportional to 163,538.80, 245,113.80 and 68,768.80 is: 103,071.45
Step by Step Solution
- Step 1: Write the proportion equation
163,538.80 : 245,113.80 = 68,768.80 : x - Step 2: Convert to fraction form
163,538.80/245,113.80 = 68,768.80/x - Step 3: Cross multiply
163,538.80x = 245,113.80 × 68,768.80 - Step 4: Simplify right side
163,538.80x = 16,856,181,889.44 - Step 5: Solve for x
x = 16,856,181,889.44/163,538.80 - Step 6: Final answer
x = 103,071.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.