Finding the Fourth Proportional to 125,688.48, 173,506.01 and 74,717.71
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Solution
The fourth proportional to 125,688.48, 173,506.01 and 74,717.71 is: 103,143.68
Step by Step Solution
- Step 1: Write the proportion equation
125,688.48 : 173,506.01 = 74,717.71 : x - Step 2: Convert to fraction form
125,688.48/173,506.01 = 74,717.71/x - Step 3: Cross multiply
125,688.48x = 173,506.01 × 74,717.71 - Step 4: Simplify right side
125,688.48x = 12,963,971,738.44 - Step 5: Solve for x
x = 12,963,971,738.44/125,688.48 - Step 6: Final answer
x = 103,143.68
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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.