Finding the Fourth Proportional to 146,280.68, 201,866.18 and 79,212.68
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Solution
The fourth proportional to 146,280.68, 201,866.18 and 79,212.68 is: 109,312.87
Step by Step Solution
- Step 1: Write the proportion equation
146,280.68 : 201,866.18 = 79,212.68 : x - Step 2: Convert to fraction form
146,280.68/201,866.18 = 79,212.68/x - Step 3: Cross multiply
146,280.68x = 201,866.18 × 79,212.68 - Step 4: Simplify right side
146,280.68x = 15,990,359,713.77 - Step 5: Solve for x
x = 15,990,359,713.77/146,280.68 - Step 6: Final answer
x = 109,312.87
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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.