Finding the Fourth Proportional to 106,776.48, 160,261.74 and 56,899.20
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Solution
The fourth proportional to 106,776.48, 160,261.74 and 56,899.20 is: 85,400.50
Step by Step Solution
- Step 1: Write the proportion equation
106,776.48 : 160,261.74 = 56,899.20 : x - Step 2: Convert to fraction form
106,776.48/160,261.74 = 56,899.20/x - Step 3: Cross multiply
106,776.48x = 160,261.74 × 56,899.20 - Step 4: Simplify right side
106,776.48x = 9,118,764,796.61 - Step 5: Solve for x
x = 9,118,764,796.61/106,776.48 - Step 6: Final answer
x = 85,400.50
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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.