Finding the Fourth Proportional to 109,133.81, 163,775.88 and 38,056.99
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Solution
The fourth proportional to 109,133.81, 163,775.88 and 38,056.99 is: 57,111.69
Step by Step Solution
- Step 1: Write the proportion equation
109,133.81 : 163,775.88 = 38,056.99 : x - Step 2: Convert to fraction form
109,133.81/163,775.88 = 38,056.99/x - Step 3: Cross multiply
109,133.81x = 163,775.88 × 38,056.99 - Step 4: Simplify right side
109,133.81x = 6,232,816,617.96 - Step 5: Solve for x
x = 6,232,816,617.96/109,133.81 - Step 6: Final answer
x = 57,111.69
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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.