Finding the Fourth Proportional to 98,574.44, 147,721.91 and 76,284.05
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Solution
The fourth proportional to 98,574.44, 147,721.91 and 76,284.05 is: 114,317.92
Step by Step Solution
- Step 1: Write the proportion equation
98,574.44 : 147,721.91 = 76,284.05 : x - Step 2: Convert to fraction form
98,574.44/147,721.91 = 76,284.05/x - Step 3: Cross multiply
98,574.44x = 147,721.91 × 76,284.05 - Step 4: Simplify right side
98,574.44x = 11,268,824,448.51 - Step 5: Solve for x
x = 11,268,824,448.51/98,574.44 - Step 6: Final answer
x = 114,317.92
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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.