Finding the Fourth Proportional to 134,901.58, 186,238.74 and 81,199.75
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Solution
The fourth proportional to 134,901.58, 186,238.74 and 81,199.75 is: 112,100.53
Step by Step Solution
- Step 1: Write the proportion equation
134,901.58 : 186,238.74 = 81,199.75 : x - Step 2: Convert to fraction form
134,901.58/186,238.74 = 81,199.75/x - Step 3: Cross multiply
134,901.58x = 186,238.74 × 81,199.75 - Step 4: Simplify right side
134,901.58x = 15,122,539,128.32 - Step 5: Solve for x
x = 15,122,539,128.32/134,901.58 - Step 6: Final answer
x = 112,100.53
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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.