Finding the Fourth Proportional to 111,143.68, 153,392.88 and 63,386.08
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Solution
The fourth proportional to 111,143.68, 153,392.88 and 63,386.08 is: 87,481.12
Step by Step Solution
- Step 1: Write the proportion equation
111,143.68 : 153,392.88 = 63,386.08 : x - Step 2: Convert to fraction form
111,143.68/153,392.88 = 63,386.08/x - Step 3: Cross multiply
111,143.68x = 153,392.88 × 63,386.08 - Step 4: Simplify right side
111,143.68x = 9,722,973,363.11 - Step 5: Solve for x
x = 9,722,973,363.11/111,143.68 - Step 6: Final answer
x = 87,481.12
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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.