Finding the Fourth Proportional to 159,516.32, 238,993.68 and 142,140.80
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Solution
The fourth proportional to 159,516.32, 238,993.68 and 142,140.80 is: 212,960.99
Step by Step Solution
- Step 1: Write the proportion equation
159,516.32 : 238,993.68 = 142,140.80 : x - Step 2: Convert to fraction form
159,516.32/238,993.68 = 142,140.80/x - Step 3: Cross multiply
159,516.32x = 238,993.68 × 142,140.80 - Step 4: Simplify right side
159,516.32x = 33,970,752,870.14 - Step 5: Solve for x
x = 33,970,752,870.14/159,516.32 - Step 6: Final answer
x = 212,960.99
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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.