Finding the Fourth Proportional to 114,465.78, 157,968.99 and 66,716.28
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Solution
The fourth proportional to 114,465.78, 157,968.99 and 66,716.28 is: 92,072.09
Step by Step Solution
- Step 1: Write the proportion equation
114,465.78 : 157,968.99 = 66,716.28 : x - Step 2: Convert to fraction form
114,465.78/157,968.99 = 66,716.28/x - Step 3: Cross multiply
114,465.78x = 157,968.99 × 66,716.28 - Step 4: Simplify right side
114,465.78x = 10,539,103,368.16 - Step 5: Solve for x
x = 10,539,103,368.16/114,465.78 - Step 6: Final answer
x = 92,072.09
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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.