Finding the Fourth Proportional to 129,701.10, 194,551.65 and 94,271.70
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Solution
The fourth proportional to 129,701.10, 194,551.65 and 94,271.70 is: 141,407.55
Step by Step Solution
- Step 1: Write the proportion equation
129,701.10 : 194,551.65 = 94,271.70 : x - Step 2: Convert to fraction form
129,701.10/194,551.65 = 94,271.70/x - Step 3: Cross multiply
129,701.10x = 194,551.65 × 94,271.70 - Step 4: Simplify right side
129,701.10x = 18,340,714,783.31 - Step 5: Solve for x
x = 18,340,714,783.31/129,701.10 - Step 6: Final answer
x = 141,407.55
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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.