Finding the Fourth Proportional to 138,670.60, 207,817.44 and 58,642.06
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Solution
The fourth proportional to 138,670.60, 207,817.44 and 58,642.06 is: 87,883.39
Step by Step Solution
- Step 1: Write the proportion equation
138,670.60 : 207,817.44 = 58,642.06 : x - Step 2: Convert to fraction form
138,670.60/207,817.44 = 58,642.06/x - Step 3: Cross multiply
138,670.60x = 207,817.44 × 58,642.06 - Step 4: Simplify right side
138,670.60x = 12,186,842,785.53 - Step 5: Solve for x
x = 12,186,842,785.53/138,670.60 - Step 6: Final answer
x = 87,883.39
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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.