Finding the Fourth Proportional to 118,763.08, 163,893.12 and 65,048.08
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Solution
The fourth proportional to 118,763.08, 163,893.12 and 65,048.08 is: 89,766.39
Step by Step Solution
- Step 1: Write the proportion equation
118,763.08 : 163,893.12 = 65,048.08 : x - Step 2: Convert to fraction form
118,763.08/163,893.12 = 65,048.08/x - Step 3: Cross multiply
118,763.08x = 163,893.12 × 65,048.08 - Step 4: Simplify right side
118,763.08x = 10,660,932,781.21 - Step 5: Solve for x
x = 10,660,932,781.21/118,763.08 - Step 6: Final answer
x = 89,766.39
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1.5x scale
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.