Finding the Fourth Proportional to 163,355.08, 225,454.42 and 99,729.84
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Solution
The fourth proportional to 163,355.08, 225,454.42 and 99,729.84 is: 137,642.08
Step by Step Solution
- Step 1: Write the proportion equation
163,355.08 : 225,454.42 = 99,729.84 : x - Step 2: Convert to fraction form
163,355.08/225,454.42 = 99,729.84/x - Step 3: Cross multiply
163,355.08x = 225,454.42 × 99,729.84 - Step 4: Simplify right side
163,355.08x = 22,484,533,233.89 - Step 5: Solve for x
x = 22,484,533,233.89/163,355.08 - Step 6: Final answer
x = 137,642.08
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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.