Finding the Fourth Proportional to 125,193.32, 187,790.30 and 31,699.08
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Solution
The fourth proportional to 125,193.32, 187,790.30 and 31,699.08 is: 47,548.70
Step by Step Solution
- Step 1: Write the proportion equation
125,193.32 : 187,790.30 = 31,699.08 : x - Step 2: Convert to fraction form
125,193.32/187,790.30 = 31,699.08/x - Step 3: Cross multiply
125,193.32x = 187,790.30 × 31,699.08 - Step 4: Simplify right side
125,193.32x = 5,952,779,742.92 - Step 5: Solve for x
x = 5,952,779,742.92/125,193.32 - Step 6: Final answer
x = 47,548.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.