Finding the Fourth Proportional to 106,777.42, 147,170.88 and 97,727.66
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Solution
The fourth proportional to 106,777.42, 147,170.88 and 97,727.66 is: 134,697.63
Step by Step Solution
- Step 1: Write the proportion equation
106,777.42 : 147,170.88 = 97,727.66 : x - Step 2: Convert to fraction form
106,777.42/147,170.88 = 97,727.66/x - Step 3: Cross multiply
106,777.42x = 147,170.88 × 97,727.66 - Step 4: Simplify right side
106,777.42x = 14,382,664,986.69 - Step 5: Solve for x
x = 14,382,664,986.69/106,777.42 - Step 6: Final answer
x = 134,697.63
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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.