Finding the Fourth Proportional to 145,955.92, 201,430.58 and 81,445.44
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Solution
The fourth proportional to 145,955.92, 201,430.58 and 81,445.44 is: 112,401.07
Step by Step Solution
- Step 1: Write the proportion equation
145,955.92 : 201,430.58 = 81,445.44 : x - Step 2: Convert to fraction form
145,955.92/201,430.58 = 81,445.44/x - Step 3: Cross multiply
145,955.92x = 201,430.58 × 81,445.44 - Step 4: Simplify right side
145,955.92x = 16,405,602,217.56 - Step 5: Solve for x
x = 16,405,602,217.56/145,955.92 - Step 6: Final answer
x = 112,401.07
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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.