Finding the Fourth Proportional to 124,560.75, 171,893.84 and 74,259.75
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Solution
The fourth proportional to 124,560.75, 171,893.84 and 74,259.75 is: 102,478.46
Step by Step Solution
- Step 1: Write the proportion equation
124,560.75 : 171,893.84 = 74,259.75 : x - Step 2: Convert to fraction form
124,560.75/171,893.84 = 74,259.75/x - Step 3: Cross multiply
124,560.75x = 171,893.84 × 74,259.75 - Step 4: Simplify right side
124,560.75x = 12,764,793,213.64 - Step 5: Solve for x
x = 12,764,793,213.64/124,560.75 - Step 6: Final answer
x = 102,478.46
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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.