Finding the Fourth Proportional to 118,634.06, 163,714.99 and 64,919.09
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Solution
The fourth proportional to 118,634.06, 163,714.99 and 64,919.09 is: 89,588.33
Step by Step Solution
- Step 1: Write the proportion equation
118,634.06 : 163,714.99 = 64,919.09 : x - Step 2: Convert to fraction form
118,634.06/163,714.99 = 64,919.09/x - Step 3: Cross multiply
118,634.06x = 163,714.99 × 64,919.09 - Step 4: Simplify right side
118,634.06x = 10,628,227,026.99 - Step 5: Solve for x
x = 10,628,227,026.99/118,634.06 - Step 6: Final answer
x = 89,588.33
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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.