Finding the Fourth Proportional to 148,358.68, 204,735.08 and 87,959.12
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Solution
The fourth proportional to 148,358.68, 204,735.08 and 87,959.12 is: 121,383.65
Step by Step Solution
- Step 1: Write the proportion equation
148,358.68 : 204,735.08 = 87,959.12 : x - Step 2: Convert to fraction form
148,358.68/204,735.08 = 87,959.12/x - Step 3: Cross multiply
148,358.68x = 204,735.08 × 87,959.12 - Step 4: Simplify right side
148,358.68x = 18,008,317,469.93 - Step 5: Solve for x
x = 18,008,317,469.93/148,358.68 - Step 6: Final answer
x = 121,383.65
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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.