Finding the Fourth Proportional to 149,962.99, 206,814.80 and 124,428.86
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Solution
The fourth proportional to 149,962.99, 206,814.80 and 124,428.86 is: 171,600.53
Step by Step Solution
- Step 1: Write the proportion equation
149,962.99 : 206,814.80 = 124,428.86 : x - Step 2: Convert to fraction form
149,962.99/206,814.80 = 124,428.86/x - Step 3: Cross multiply
149,962.99x = 206,814.80 × 124,428.86 - Step 4: Simplify right side
149,962.99x = 25,733,728,761.05 - Step 5: Solve for x
x = 25,733,728,761.05/149,962.99 - Step 6: Final answer
x = 171,600.53
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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.