Finding the Fourth Proportional to 125,249.21, 172,840.33 and 71,533.12
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Solution
The fourth proportional to 125,249.21, 172,840.33 and 71,533.12 is: 98,713.66
Step by Step Solution
- Step 1: Write the proportion equation
125,249.21 : 172,840.33 = 71,533.12 : x - Step 2: Convert to fraction form
125,249.21/172,840.33 = 71,533.12/x - Step 3: Cross multiply
125,249.21x = 172,840.33 × 71,533.12 - Step 4: Simplify right side
125,249.21x = 12,363,808,066.73 - Step 5: Solve for x
x = 12,363,808,066.73/125,249.21 - Step 6: Final answer
x = 98,713.66
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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.