Finding the Fourth Proportional to 124,795.60, 172,207.56 and 68,206.80
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Solution
The fourth proportional to 124,795.60, 172,207.56 and 68,206.80 is: 94,119.72
Step by Step Solution
- Step 1: Write the proportion equation
124,795.60 : 172,207.56 = 68,206.80 : x - Step 2: Convert to fraction form
124,795.60/172,207.56 = 68,206.80/x - Step 3: Cross multiply
124,795.60x = 172,207.56 × 68,206.80 - Step 4: Simplify right side
124,795.60x = 11,745,726,603.41 - Step 5: Solve for x
x = 11,745,726,603.41/124,795.60 - Step 6: Final answer
x = 94,119.72
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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.