Finding the Fourth Proportional to 163,929.04, 245,510.84 and 126,189.66
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Solution
The fourth proportional to 163,929.04, 245,510.84 and 126,189.66 is: 188,989.88
Step by Step Solution
- Step 1: Write the proportion equation
163,929.04 : 245,510.84 = 126,189.66 : x - Step 2: Convert to fraction form
163,929.04/245,510.84 = 126,189.66/x - Step 3: Cross multiply
163,929.04x = 245,510.84 × 126,189.66 - Step 4: Simplify right side
163,929.04x = 30,980,929,425.91 - Step 5: Solve for x
x = 30,980,929,425.91/163,929.04 - Step 6: Final answer
x = 188,989.88
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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.