Finding the Fourth Proportional to 163,021.80, 224,980.98 and 91,406.46
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Solution
The fourth proportional to 163,021.80, 224,980.98 and 91,406.46 is: 126,147.02
Step by Step Solution
- Step 1: Write the proportion equation
163,021.80 : 224,980.98 = 91,406.46 : x - Step 2: Convert to fraction form
163,021.80/224,980.98 = 91,406.46/x - Step 3: Cross multiply
163,021.80x = 224,980.98 × 91,406.46 - Step 4: Simplify right side
163,021.80x = 20,564,714,949.13 - Step 5: Solve for x
x = 20,564,714,949.13/163,021.80 - Step 6: Final answer
x = 126,147.02
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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.