Finding the Fourth Proportional to 163,511.80, 245,138.10 and 89,639.80
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Solution
The fourth proportional to 163,511.80, 245,138.10 and 89,639.80 is: 134,388.65
Step by Step Solution
- Step 1: Write the proportion equation
163,511.80 : 245,138.10 = 89,639.80 : x - Step 2: Convert to fraction form
163,511.80/245,138.10 = 89,639.80/x - Step 3: Cross multiply
163,511.80x = 245,138.10 × 89,639.80 - Step 4: Simplify right side
163,511.80x = 21,974,130,256.38 - Step 5: Solve for x
x = 21,974,130,256.38/163,511.80 - Step 6: Final answer
x = 134,388.65
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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.