Finding the Fourth Proportional to 129,134.56, 193,526.88 and 66,848.80
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Solution
The fourth proportional to 129,134.56, 193,526.88 and 66,848.80 is: 100,182.63
Step by Step Solution
- Step 1: Write the proportion equation
129,134.56 : 193,526.88 = 66,848.80 : x - Step 2: Convert to fraction form
129,134.56/193,526.88 = 66,848.80/x - Step 3: Cross multiply
129,134.56x = 193,526.88 × 66,848.80 - Step 4: Simplify right side
129,134.56x = 12,937,039,695.74 - Step 5: Solve for x
x = 12,937,039,695.74/129,134.56 - Step 6: Final answer
x = 100,182.63
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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.