Finding the Fourth Proportional to 138,162.93, 190,651.35 and 77,732.31
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Solution
The fourth proportional to 138,162.93, 190,651.35 and 77,732.31 is: 107,263.00
Step by Step Solution
- Step 1: Write the proportion equation
138,162.93 : 190,651.35 = 77,732.31 : x - Step 2: Convert to fraction form
138,162.93/190,651.35 = 77,732.31/x - Step 3: Cross multiply
138,162.93x = 190,651.35 × 77,732.31 - Step 4: Simplify right side
138,162.93x = 14,819,769,840.12 - Step 5: Solve for x
x = 14,819,769,840.12/138,162.93 - Step 6: Final answer
x = 107,263.00
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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.