Finding the Fourth Proportional to 129,729.08, 194,617.14 and 58,685.18
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Solution
The fourth proportional to 129,729.08, 194,617.14 and 58,685.18 is: 88,038.42
Step by Step Solution
- Step 1: Write the proportion equation
129,729.08 : 194,617.14 = 58,685.18 : x - Step 2: Convert to fraction form
129,729.08/194,617.14 = 58,685.18/x - Step 3: Cross multiply
129,729.08x = 194,617.14 × 58,685.18 - Step 4: Simplify right side
129,729.08x = 11,421,142,753.54 - Step 5: Solve for x
x = 11,421,142,753.54/129,729.08 - Step 6: Final answer
x = 88,038.42
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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.