Finding the Fourth Proportional to 105,560.98, 145,674.36 and 57,163.44
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Solution
The fourth proportional to 105,560.98, 145,674.36 and 57,163.44 is: 78,885.66
Step by Step Solution
- Step 1: Write the proportion equation
105,560.98 : 145,674.36 = 57,163.44 : x - Step 2: Convert to fraction form
105,560.98/145,674.36 = 57,163.44/x - Step 3: Cross multiply
105,560.98x = 145,674.36 × 57,163.44 - Step 4: Simplify right side
105,560.98x = 8,327,247,537.40 - Step 5: Solve for x
x = 8,327,247,537.40/105,560.98 - Step 6: Final answer
x = 78,885.66
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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.