Finding the Fourth Proportional to 118,620.63, 163,680.35 and 70,863.84
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Solution
The fourth proportional to 118,620.63, 163,680.35 and 70,863.84 is: 97,782.47
Step by Step Solution
- Step 1: Write the proportion equation
118,620.63 : 163,680.35 = 70,863.84 : x - Step 2: Convert to fraction form
118,620.63/163,680.35 = 70,863.84/x - Step 3: Cross multiply
118,620.63x = 163,680.35 × 70,863.84 - Step 4: Simplify right side
118,620.63x = 11,599,017,779.22 - Step 5: Solve for x
x = 11,599,017,779.22/118,620.63 - Step 6: Final answer
x = 97,782.47
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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.