Finding the Fourth Proportional to 157,036.80, 235,476.36 and 72,724.44
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Solution
The fourth proportional to 157,036.80, 235,476.36 and 72,724.44 is: 109,050.15
Step by Step Solution
- Step 1: Write the proportion equation
157,036.80 : 235,476.36 = 72,724.44 : x - Step 2: Convert to fraction form
157,036.80/235,476.36 = 72,724.44/x - Step 3: Cross multiply
157,036.80x = 235,476.36 × 72,724.44 - Step 4: Simplify right side
157,036.80x = 17,124,886,414.24 - Step 5: Solve for x
x = 17,124,886,414.24/157,036.80 - Step 6: Final answer
x = 109,050.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.