Finding the Fourth Proportional to 124,929.60, 187,187.04 and 87,915.84
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Solution
The fourth proportional to 124,929.60, 187,187.04 and 87,915.84 is: 131,727.84
Step by Step Solution
- Step 1: Write the proportion equation
124,929.60 : 187,187.04 = 87,915.84 : x - Step 2: Convert to fraction form
124,929.60/187,187.04 = 87,915.84/x - Step 3: Cross multiply
124,929.60x = 187,187.04 × 87,915.84 - Step 4: Simplify right side
124,929.60x = 16,456,705,858.71 - Step 5: Solve for x
x = 16,456,705,858.71/124,929.60 - Step 6: Final answer
x = 131,727.84
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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.