Finding the Fourth Proportional to 119,348.19, 178,983.99 and 39,368.19
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Solution
The fourth proportional to 119,348.19, 178,983.99 and 39,368.19 is: 59,039.65
Step by Step Solution
- Step 1: Write the proportion equation
119,348.19 : 178,983.99 = 39,368.19 : x - Step 2: Convert to fraction form
119,348.19/178,983.99 = 39,368.19/x - Step 3: Cross multiply
119,348.19x = 178,983.99 × 39,368.19 - Step 4: Simplify right side
119,348.19x = 7,046,275,725.28 - Step 5: Solve for x
x = 7,046,275,725.28/119,348.19 - Step 6: Final answer
x = 59,039.65
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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.