Finding the Fourth Proportional to 134,630.48, 185,782.84 and 74,189.09
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Solution
The fourth proportional to 134,630.48, 185,782.84 and 74,189.09 is: 102,376.96
Step by Step Solution
- Step 1: Write the proportion equation
134,630.48 : 185,782.84 = 74,189.09 : x - Step 2: Convert to fraction form
134,630.48/185,782.84 = 74,189.09/x - Step 3: Cross multiply
134,630.48x = 185,782.84 × 74,189.09 - Step 4: Simplify right side
134,630.48x = 13,783,060,116.20 - Step 5: Solve for x
x = 13,783,060,116.20/134,630.48 - Step 6: Final answer
x = 102,376.96
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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.