Finding the Fourth Proportional to 135,297.44, 186,730.28 and 77,925.74
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Solution
The fourth proportional to 135,297.44, 186,730.28 and 77,925.74 is: 107,548.92
Step by Step Solution
- Step 1: Write the proportion equation
135,297.44 : 186,730.28 = 77,925.74 : x - Step 2: Convert to fraction form
135,297.44/186,730.28 = 77,925.74/x - Step 3: Cross multiply
135,297.44x = 186,730.28 × 77,925.74 - Step 4: Simplify right side
135,297.44x = 14,551,093,926.13 - Step 5: Solve for x
x = 14,551,093,926.13/135,297.44 - Step 6: Final answer
x = 107,548.92
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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.