Finding the Fourth Proportional to 129,935.63, 179,311.16 and 70,319.63
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Solution
The fourth proportional to 129,935.63, 179,311.16 and 70,319.63 is: 97,041.08
Step by Step Solution
- Step 1: Write the proportion equation
129,935.63 : 179,311.16 = 70,319.63 : x - Step 2: Convert to fraction form
129,935.63/179,311.16 = 70,319.63/x - Step 3: Cross multiply
129,935.63x = 179,311.16 × 70,319.63 - Step 4: Simplify right side
129,935.63x = 12,609,093,705.31 - Step 5: Solve for x
x = 12,609,093,705.31/129,935.63 - Step 6: Final answer
x = 97,041.08
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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.