Finding the Fourth Proportional to 125,940.84, 173,746.20 and 74,943.36
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Solution
The fourth proportional to 125,940.84, 173,746.20 and 74,943.36 is: 103,390.80
Step by Step Solution
- Step 1: Write the proportion equation
125,940.84 : 173,746.20 = 74,943.36 : x - Step 2: Convert to fraction form
125,940.84/173,746.20 = 74,943.36/x - Step 3: Cross multiply
125,940.84x = 173,746.20 × 74,943.36 - Step 4: Simplify right side
125,940.84x = 13,021,124,015.23 - Step 5: Solve for x
x = 13,021,124,015.23/125,940.84 - Step 6: Final answer
x = 103,390.80
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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.