Finding the Fourth Proportional to 105,716.08, 145,964.75 and 68,055.94
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Solution
The fourth proportional to 105,716.08, 145,964.75 and 68,055.94 is: 93,966.48
Step by Step Solution
- Step 1: Write the proportion equation
105,716.08 : 145,964.75 = 68,055.94 : x - Step 2: Convert to fraction form
105,716.08/145,964.75 = 68,055.94/x - Step 3: Cross multiply
105,716.08x = 145,964.75 × 68,055.94 - Step 4: Simplify right side
105,716.08x = 9,933,767,818.13 - Step 5: Solve for x
x = 9,933,767,818.13/105,716.08 - Step 6: Final answer
x = 93,966.48
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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.