Finding the Fourth Proportional to 130,452.23, 179,944.50 and 86,249.68
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Solution
The fourth proportional to 130,452.23, 179,944.50 and 86,249.68 is: 118,971.95
Step by Step Solution
- Step 1: Write the proportion equation
130,452.23 : 179,944.50 = 86,249.68 : x - Step 2: Convert to fraction form
130,452.23/179,944.50 = 86,249.68/x - Step 3: Cross multiply
130,452.23x = 179,944.50 × 86,249.68 - Step 4: Simplify right side
130,452.23x = 15,520,155,092.90 - Step 5: Solve for x
x = 15,520,155,092.90/130,452.23 - Step 6: Final answer
x = 118,971.95
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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.