Finding the Fourth Proportional to 108,609.63, 149,875.10 and 63,294.99
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Solution
The fourth proportional to 108,609.63, 149,875.10 and 63,294.99 is: 87,343.48
Step by Step Solution
- Step 1: Write the proportion equation
108,609.63 : 149,875.10 = 63,294.99 : x - Step 2: Convert to fraction form
108,609.63/149,875.10 = 63,294.99/x - Step 3: Cross multiply
108,609.63x = 149,875.10 × 63,294.99 - Step 4: Simplify right side
108,609.63x = 9,486,342,639.27 - Step 5: Solve for x
x = 9,486,342,639.27/108,609.63 - Step 6: Final answer
x = 87,343.48
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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.