Finding the Fourth Proportional to 135,891.74, 203,895.20 and 72,695.31
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Solution
The fourth proportional to 135,891.74, 203,895.20 and 72,695.31 is: 109,073.77
Step by Step Solution
- Step 1: Write the proportion equation
135,891.74 : 203,895.20 = 72,695.31 : x - Step 2: Convert to fraction form
135,891.74/203,895.20 = 72,695.31/x - Step 3: Cross multiply
135,891.74x = 203,895.20 × 72,695.31 - Step 4: Simplify right side
135,891.74x = 14,822,224,408.04 - Step 5: Solve for x
x = 14,822,224,408.04/135,891.74 - Step 6: Final answer
x = 109,073.77
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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.