Finding the Fourth Proportional to 118,212.03, 163,132.26 and 64,497.09
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Solution
The fourth proportional to 118,212.03, 163,132.26 and 64,497.09 is: 89,005.80
Step by Step Solution
- Step 1: Write the proportion equation
118,212.03 : 163,132.26 = 64,497.09 : x - Step 2: Convert to fraction form
118,212.03/163,132.26 = 64,497.09/x - Step 3: Cross multiply
118,212.03x = 163,132.26 × 64,497.09 - Step 4: Simplify right side
118,212.03x = 10,521,556,055.12 - Step 5: Solve for x
x = 10,521,556,055.12/118,212.03 - Step 6: Final answer
x = 89,005.80
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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.