Finding the Fourth Proportional to 129,730.58, 194,619.39 and 58,686.68
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Solution
The fourth proportional to 129,730.58, 194,619.39 and 58,686.68 is: 88,040.66
Step by Step Solution
- Step 1: Write the proportion equation
129,730.58 : 194,619.39 = 58,686.68 : x - Step 2: Convert to fraction form
129,730.58/194,619.39 = 58,686.68/x - Step 3: Cross multiply
129,730.58x = 194,619.39 × 58,686.68 - Step 4: Simplify right side
129,730.58x = 11,421,565,862.73 - Step 5: Solve for x
x = 11,421,565,862.73/129,730.58 - Step 6: Final answer
x = 88,040.66
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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.