Finding the Fourth Proportional to 114,249.68, 157,642.14 and 71,783.68
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Solution
The fourth proportional to 114,249.68, 157,642.14 and 71,783.68 is: 99,047.39
Step by Step Solution
- Step 1: Write the proportion equation
114,249.68 : 157,642.14 = 71,783.68 : x - Step 2: Convert to fraction form
114,249.68/157,642.14 = 71,783.68/x - Step 3: Cross multiply
114,249.68x = 157,642.14 × 71,783.68 - Step 4: Simplify right side
114,249.68x = 11,316,132,932.28 - Step 5: Solve for x
x = 11,316,132,932.28/114,249.68 - Step 6: Final answer
x = 99,047.39
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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.