Finding the Fourth Proportional to 134,466.30, 201,635.40 and 78,322.08
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Solution
The fourth proportional to 134,466.30, 201,635.40 and 78,322.08 is: 117,445.81
Step by Step Solution
- Step 1: Write the proportion equation
134,466.30 : 201,635.40 = 78,322.08 : x - Step 2: Convert to fraction form
134,466.30/201,635.40 = 78,322.08/x - Step 3: Cross multiply
134,466.30x = 201,635.40 × 78,322.08 - Step 4: Simplify right side
134,466.30x = 15,792,503,929.63 - Step 5: Solve for x
x = 15,792,503,929.63/134,466.30 - Step 6: Final answer
x = 117,445.81
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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.