Finding the Fourth Proportional to 134,871.60, 202,258.80 and 68,289.60
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Solution
The fourth proportional to 134,871.60, 202,258.80 and 68,289.60 is: 102,409.79
Step by Step Solution
- Step 1: Write the proportion equation
134,871.60 : 202,258.80 = 68,289.60 : x - Step 2: Convert to fraction form
134,871.60/202,258.80 = 68,289.60/x - Step 3: Cross multiply
134,871.60x = 202,258.80 × 68,289.60 - Step 4: Simplify right side
134,871.60x = 13,812,172,548.48 - Step 5: Solve for x
x = 13,812,172,548.48/134,871.60 - Step 6: Final answer
x = 102,409.79
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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.