Finding the Fourth Proportional to 163,542.90, 245,423.70 and 74,750.70
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Solution
The fourth proportional to 163,542.90, 245,423.70 and 74,750.70 is: 112,176.03
Step by Step Solution
- Step 1: Write the proportion equation
163,542.90 : 245,423.70 = 74,750.70 : x - Step 2: Convert to fraction form
163,542.90/245,423.70 = 74,750.70/x - Step 3: Cross multiply
163,542.90x = 245,423.70 × 74,750.70 - Step 4: Simplify right side
163,542.90x = 18,345,593,371.59 - Step 5: Solve for x
x = 18,345,593,371.59/163,542.90 - Step 6: Final answer
x = 112,176.03
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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.