Finding the Fourth Proportional to 125,364.30, 187,869.63 and 69,229.68
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Solution
The fourth proportional to 125,364.30, 187,869.63 and 69,229.68 is: 103,746.88
Step by Step Solution
- Step 1: Write the proportion equation
125,364.30 : 187,869.63 = 69,229.68 : x - Step 2: Convert to fraction form
125,364.30/187,869.63 = 69,229.68/x - Step 3: Cross multiply
125,364.30x = 187,869.63 × 69,229.68 - Step 4: Simplify right side
125,364.30x = 13,006,154,366.62 - Step 5: Solve for x
x = 13,006,154,366.62/125,364.30 - Step 6: Final answer
x = 103,746.88
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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.