Finding the Fourth Proportional to 146,358.08, 201,975.12 and 79,290.08
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Solution
The fourth proportional to 146,358.08, 201,975.12 and 79,290.08 is: 109,420.84
Step by Step Solution
- Step 1: Write the proportion equation
146,358.08 : 201,975.12 = 79,290.08 : x - Step 2: Convert to fraction form
146,358.08/201,975.12 = 79,290.08/x - Step 3: Cross multiply
146,358.08x = 201,975.12 × 79,290.08 - Step 4: Simplify right side
146,358.08x = 16,014,623,422.81 - Step 5: Solve for x
x = 16,014,623,422.81/146,358.08 - Step 6: Final answer
x = 109,420.84
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1.5x scale
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.