Finding the Fourth Proportional to 115,670.60, 159,659.28 and 67,283.84
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Solution
The fourth proportional to 115,670.60, 159,659.28 and 67,283.84 is: 92,871.39
Step by Step Solution
- Step 1: Write the proportion equation
115,670.60 : 159,659.28 = 67,283.84 : x - Step 2: Convert to fraction form
115,670.60/159,659.28 = 67,283.84/x - Step 3: Cross multiply
115,670.60x = 159,659.28 × 67,283.84 - Step 4: Simplify right side
115,670.60x = 10,742,489,450.04 - Step 5: Solve for x
x = 10,742,489,450.04/115,670.60 - Step 6: Final answer
x = 92,871.39
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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.