Finding the Fourth Proportional to 118,451.53, 163,447.36 and 76,067.47
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Solution
The fourth proportional to 118,451.53, 163,447.36 and 76,067.47 is: 104,962.99
Step by Step Solution
- Step 1: Write the proportion equation
118,451.53 : 163,447.36 = 76,067.47 : x - Step 2: Convert to fraction form
118,451.53/163,447.36 = 76,067.47/x - Step 3: Cross multiply
118,451.53x = 163,447.36 × 76,067.47 - Step 4: Simplify right side
118,451.53x = 12,433,027,153.38 - Step 5: Solve for x
x = 12,433,027,153.38/118,451.53 - Step 6: Final answer
x = 104,962.99
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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.