Finding the Fourth Proportional to 129,948.60, 194,929.86 and 41,209.08
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Solution
The fourth proportional to 129,948.60, 194,929.86 and 41,209.08 is: 61,815.83
Step by Step Solution
- Step 1: Write the proportion equation
129,948.60 : 194,929.86 = 41,209.08 : x - Step 2: Convert to fraction form
129,948.60/194,929.86 = 41,209.08/x - Step 3: Cross multiply
129,948.60x = 194,929.86 × 41,209.08 - Step 4: Simplify right side
129,948.60x = 8,032,880,195.13 - Step 5: Solve for x
x = 8,032,880,195.13/129,948.60 - Step 6: Final answer
x = 61,815.83
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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.