Finding the Fourth Proportional to 118,467.77, 163,485.84 and 70,720.09
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Solution
The fourth proportional to 118,467.77, 163,485.84 and 70,720.09 is: 97,593.92
Step by Step Solution
- Step 1: Write the proportion equation
118,467.77 : 163,485.84 = 70,720.09 : x - Step 2: Convert to fraction form
118,467.77/163,485.84 = 70,720.09/x - Step 3: Cross multiply
118,467.77x = 163,485.84 × 70,720.09 - Step 4: Simplify right side
118,467.77x = 11,561,733,175.01 - Step 5: Solve for x
x = 11,561,733,175.01/118,467.77 - Step 6: Final answer
x = 97,593.92
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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.