Finding the Fourth Proportional to 134,611.80, 185,763.42 and 74,182.92
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Solution
The fourth proportional to 134,611.80, 185,763.42 and 74,182.92 is: 102,371.95
Step by Step Solution
- Step 1: Write the proportion equation
134,611.80 : 185,763.42 = 74,182.92 : x - Step 2: Convert to fraction form
134,611.80/185,763.42 = 74,182.92/x - Step 3: Cross multiply
134,611.80x = 185,763.42 × 74,182.92 - Step 4: Simplify right side
134,611.80x = 13,780,472,924.79 - Step 5: Solve for x
x = 13,780,472,924.79/134,611.80 - Step 6: Final answer
x = 102,371.95
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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.