Finding the Fourth Proportional to 133,043.10, 199,621.35 and 69,911.70
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Solution
The fourth proportional to 133,043.10, 199,621.35 and 69,911.70 is: 104,897.34
Step by Step Solution
- Step 1: Write the proportion equation
133,043.10 : 199,621.35 = 69,911.70 : x - Step 2: Convert to fraction form
133,043.10/199,621.35 = 69,911.70/x - Step 3: Cross multiply
133,043.10x = 199,621.35 × 69,911.70 - Step 4: Simplify right side
133,043.10x = 13,955,867,934.80 - Step 5: Solve for x
x = 13,955,867,934.80/133,043.10 - Step 6: Final answer
x = 104,897.34
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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.