Finding the Fourth Proportional to 122,122.80, 183,205.80 and 43,282.80
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Solution
The fourth proportional to 122,122.80, 183,205.80 and 43,282.80 is: 64,931.86
Step by Step Solution
- Step 1: Write the proportion equation
122,122.80 : 183,205.80 = 43,282.80 : x - Step 2: Convert to fraction form
122,122.80/183,205.80 = 43,282.80/x - Step 3: Cross multiply
122,122.80x = 183,205.80 × 43,282.80 - Step 4: Simplify right side
122,122.80x = 7,929,660,000.24 - Step 5: Solve for x
x = 7,929,660,000.24/122,122.80 - Step 6: Final answer
x = 64,931.86
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1.5x scale
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.