Finding the Fourth Proportional to 124,776.64, 172,194.08 and 68,191.68
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Solution
The fourth proportional to 124,776.64, 172,194.08 and 68,191.68 is: 94,105.78
Step by Step Solution
- Step 1: Write the proportion equation
124,776.64 : 172,194.08 = 68,191.68 : x - Step 2: Convert to fraction form
124,776.64/172,194.08 = 68,191.68/x - Step 3: Cross multiply
124,776.64x = 172,194.08 × 68,191.68 - Step 4: Simplify right side
124,776.64x = 11,742,203,601.25 - Step 5: Solve for x
x = 11,742,203,601.25/124,776.64 - Step 6: Final answer
x = 94,105.78
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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.