Finding the Fourth Proportional to 134,445.60, 201,668.40 and 84,679.20
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Solution
The fourth proportional to 134,445.60, 201,668.40 and 84,679.20 is: 127,018.80
Step by Step Solution
- Step 1: Write the proportion equation
134,445.60 : 201,668.40 = 84,679.20 : x - Step 2: Convert to fraction form
134,445.60/201,668.40 = 84,679.20/x - Step 3: Cross multiply
134,445.60x = 201,668.40 × 84,679.20 - Step 4: Simplify right side
134,445.60x = 17,077,118,777.28 - Step 5: Solve for x
x = 17,077,118,777.28/134,445.60 - Step 6: Final answer
x = 127,018.80
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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.