Finding the Fourth Proportional to 125,038.19, 187,963.70 and 100,348.77
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Solution
The fourth proportional to 125,038.19, 187,963.70 and 100,348.77 is: 150,849.32
Step by Step Solution
- Step 1: Write the proportion equation
125,038.19 : 187,963.70 = 100,348.77 : x - Step 2: Convert to fraction form
125,038.19/187,963.70 = 100,348.77/x - Step 3: Cross multiply
125,038.19x = 187,963.70 × 100,348.77 - Step 4: Simplify right side
125,038.19x = 18,861,926,099.65 - Step 5: Solve for x
x = 18,861,926,099.65/125,038.19 - Step 6: Final answer
x = 150,849.32
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1.5x scale
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.