Finding the Fourth Proportional to 97,668.60, 146,502.90 and 53,431.80
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Solution
The fourth proportional to 97,668.60, 146,502.90 and 53,431.80 is: 80,147.70
Step by Step Solution
- Step 1: Write the proportion equation
97,668.60 : 146,502.90 = 53,431.80 : x - Step 2: Convert to fraction form
97,668.60/146,502.90 = 53,431.80/x - Step 3: Cross multiply
97,668.60x = 146,502.90 × 53,431.80 - Step 4: Simplify right side
97,668.60x = 7,827,913,652.22 - Step 5: Solve for x
x = 7,827,913,652.22/97,668.60 - Step 6: Final answer
x = 80,147.70
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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.