Finding the Fourth Proportional to 157,118.64, 235,678.44 and 38,789.99
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Solution
The fourth proportional to 157,118.64, 235,678.44 and 38,789.99 is: 58,185.11
Step by Step Solution
- Step 1: Write the proportion equation
157,118.64 : 235,678.44 = 38,789.99 : x - Step 2: Convert to fraction form
157,118.64/235,678.44 = 38,789.99/x - Step 3: Cross multiply
157,118.64x = 235,678.44 × 38,789.99 - Step 4: Simplify right side
157,118.64x = 9,141,964,920.01 - Step 5: Solve for x
x = 9,141,964,920.01/157,118.64 - Step 6: Final answer
x = 58,185.11
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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.