Finding the Fourth Proportional to 190,136.70, 262,390.59 and 105,251.94
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Solution
The fourth proportional to 190,136.70, 262,390.59 and 105,251.94 is: 145,248.75
Step by Step Solution
- Step 1: Write the proportion equation
190,136.70 : 262,390.59 = 105,251.94 : x - Step 2: Convert to fraction form
190,136.70/262,390.59 = 105,251.94/x - Step 3: Cross multiply
190,136.70x = 262,390.59 × 105,251.94 - Step 4: Simplify right side
190,136.70x = 27,617,118,635.24 - Step 5: Solve for x
x = 27,617,118,635.24/190,136.70 - Step 6: Final answer
x = 145,248.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.