Finding the Fourth Proportional to 119,132.19, 178,772.06 and 69,235.79
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Solution
The fourth proportional to 119,132.19, 178,772.06 and 69,235.79 is: 103,896.55
Step by Step Solution
- Step 1: Write the proportion equation
119,132.19 : 178,772.06 = 69,235.79 : x - Step 2: Convert to fraction form
119,132.19/178,772.06 = 69,235.79/x - Step 3: Cross multiply
119,132.19x = 178,772.06 × 69,235.79 - Step 4: Simplify right side
119,132.19x = 12,377,424,083.26 - Step 5: Solve for x
x = 12,377,424,083.26/119,132.19 - Step 6: Final answer
x = 103,896.55
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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.