Finding the Fourth Proportional to 148,139.52, 204,431.07 and 80,154.99
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Solution
The fourth proportional to 148,139.52, 204,431.07 and 80,154.99 is: 110,613.09
Step by Step Solution
- Step 1: Write the proportion equation
148,139.52 : 204,431.07 = 80,154.99 : x - Step 2: Convert to fraction form
148,139.52/204,431.07 = 80,154.99/x - Step 3: Cross multiply
148,139.52x = 204,431.07 × 80,154.99 - Step 4: Simplify right side
148,139.52x = 16,386,170,371.54 - Step 5: Solve for x
x = 16,386,170,371.54/148,139.52 - Step 6: Final answer
x = 110,613.09
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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.